- variableName of the variable
C++ Type:VariableName
Controllable:No
Description:Name of the variable
ScalarVariable
Returns the value of a scalar variable as a postprocessor value.
Example input syntax
In this example, the scalar variable v is the solution of a simple reaction ODE. We use the ScalarVariable postprocessor to output the value of the scalar variable to a CSV file.
[reporter]
type = ScalarVariable
variable = v
execute_on = 'initial timestep_end'
[]
Input Parameters
- component0Component to output for this variable
Default:0
C++ Type:unsigned int
Controllable:No
Description:Component to output for this variable
- execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, TRANSFER, ALWAYS
Controllable:No
Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS.
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
Optional Parameters
- allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
Default:False
C++ Type:bool
Controllable:No
Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- force_postauxFalseForces the UserObject to be executed in POSTAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in POSTAUX
- force_preauxFalseForces the UserObject to be executed in PREAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREAUX
- force_preicFalseForces the UserObject to be executed in PREIC during initial setup
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREIC during initial setup
- outputsVector of output names were you would like to restrict the output of variables(s) associated with this object
C++ Type:std::vector<OutputName>
Controllable:No
Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object
- use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Advanced Parameters
Input Files
- (modules/thermal_hydraulics/test/tests/components/shaft_connected_compressor_1phase/shaft_motor_compressor.i)
- (test/tests/ics/component_ic/component_ic.i)
- (examples/ex18_scalar_kernel/ex18.i)
- (test/tests/outputs/exodus/variable_output_test.i)
- (modules/thermal_hydraulics/test/tests/components/junction_parallel_channels_1phase/conservation.i)
- (modules/thermal_hydraulics/test/tests/components/pump_1phase/pump_pressure_check.i)
- (test/tests/outputs/variables/output_vars_test.i)
- (test/tests/outputs/variables/output_vars_nonexistent.i)
- (modules/thermal_hydraulics/test/tests/components/junction_parallel_channels_1phase/equal_area_with_junction.i)
- (test/tests/auxkernels/function_scalar_aux/function_scalar_aux.i)
- (modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/phy.conservation.i)
- (test/tests/kernels/ode/coupled_ode_td.i)
- (modules/thermal_hydraulics/test/tests/problems/brayton_cycle/closed_brayton_cycle.i)
- (test/tests/outputs/nemesis/nemesis_scalar.i)
- (modules/thermal_hydraulics/test/tests/components/shaft_connected_turbine_1phase/shaft_motor_turbine.i)
- (modules/thermal_hydraulics/test/tests/components/pump_1phase/pump_mass_energy_conservation.i)
- (test/tests/dirackernels/aux_scalar_variable/aux_scalar_variable.i)
- (modules/thermal_hydraulics/test/tests/components/shaft_connected_pump_1phase/pump_coastdown.i)
- (test/tests/controls/time_periods/transfers/sub.i)
- (modules/thermal_hydraulics/test/tests/components/volume_junction_1phase/equal_area_with_junction.i)
- (modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/clg.test.i)
- (modules/thermal_hydraulics/test/tests/components/volume_junction_1phase/t_junction_1phase.i)
- (test/tests/transfers/multiapp_postprocessor_to_scalar/master2.i)
- (test/tests/kernels/ode/ode_expl_test.i)
- (test/tests/kernels/ode/coupled_ode_td_var_ic_from_mesh.i)
- (test/tests/auxkernels/aux_nodal_scalar_kernel/aux_nodal_scalar_kernel.i)
- (test/tests/kernels/ode/parsedode_pp_test.i)
- (modules/thermal_hydraulics/test/tests/components/shaft_connected_turbine_1phase/turbine_startup.i)
- (test/tests/kernels/ode/ode_sys_impl_test.i)
- (test/tests/auxkernels/constant_scalar_aux/constant_scalar_aux.i)
- (test/tests/outputs/variables/output_vars_hidden_shown_check.i)
- (modules/thermal_hydraulics/test/tests/components/shaft_connected_pump_1phase/shaft_motor_pump.i)
- (test/tests/kernels/ode/coupled_ode_td_auxvar_ic_from_mesh.i)
- (test/tests/time_integrators/scalar/stiff.i)
- (examples/ex18_scalar_kernel/ex18_parsed.i)
- (test/tests/postprocessors/scalar_variable/scalar_variable_pps.i)
- (test/tests/kernels/ode/parsedode_sys_impl_test.i)
- (modules/thermal_hydraulics/test/tests/problems/brayton_cycle/open_brayton_cycle.i)
- (test/tests/transfers/multiapp_postprocessor_to_scalar/sub.i)
(test/tests/postprocessors/scalar_variable/scalar_variable_pps.i)
[Mesh]
type = GeneratedMesh
dim = 1
nx = 10
[]
[Kernels]
[diff]
type = Diffusion
variable = u
[]
[time]
type = TimeDerivative
variable = u
[]
[]
[ScalarKernels]
[time]
type = ODETimeDerivative
variable = v
[]
[flux_sink]
type = PostprocessorSinkScalarKernel
variable = v
postprocessor = scale_flux
[]
[]
[BCs]
[right]
type = DirichletBC
value = 0
variable = u
boundary = 'right'
[]
[left]
type = ADMatchedScalarValueBC
variable = u
v = v
boundary = 'left'
[]
[]
[Variables]
[u][]
[v]
family = SCALAR
order = FIRST
initial_condition = 1
[]
[]
[Postprocessors]
[flux]
type = SideDiffusiveFluxIntegral
variable = u
diffusivity = 1
boundary = 'left'
execute_on = 'initial nonlinear linear timestep_end'
[]
[scale_flux]
type = ScalePostprocessor
scaling_factor = -1
value = flux
execute_on = 'initial nonlinear linear timestep_end'
[]
[reporter]
type = ScalarVariable
variable = v
execute_on = 'initial timestep_end'
[]
[]
[Executioner]
type = Transient
dt = .1
end_time = 1
solve_type = PJFNK
nl_rel_tol = 1e-12
[]
[Outputs]
csv = true
[]
(modules/thermal_hydraulics/test/tests/components/shaft_connected_compressor_1phase/shaft_motor_compressor.i)
area = 0.2359
dt = 1.e-3
[GlobalParams]
initial_p = 1e5
initial_T = 288
initial_vel = 60
initial_vel_x = 60
initial_vel_y = 0
initial_vel_z = 0
A = ${area}
A_ref = ${area}
f = 100
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
fp = fp
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[compressor]
type = ShaftConnectedCompressor1Phase
inlet = 'pipe:out'
outlet = 'pipe:in'
position = '0 0 0'
scaling_factor_rhoEV = 1e-5
volume = ${fparse area*0.45}
inertia_coeff = '1 1 1 1'
inertia_const = 1.61397
speed_cr_I = 1e12
speed_cr_fr = 0
tau_fr_coeff = '0 0 0 0'
tau_fr_const = 0
omega_rated = 200
mdot_rated = 21.74
rho0_rated = 1.1812
c0_rated = 340
speeds = '0.0 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 2'
Rp_functions = 'Rp00 Rp04 Rp05 Rp06 Rp07 Rp08 Rp09 Rp10 Rp11 Rp11'
eff_functions = 'eff00 eff04 eff05 eff06 eff07 eff08 eff09 eff10 eff11 eff11'
[]
[pipe]
type = FlowChannel1Phase
position = '0.1 0 0'
orientation = '1 0 0'
length = 10
n_elems = 20
[]
[motor]
type = ShaftConnectedMotor
inertia = 1e2
torque = 100
[]
[shaft]
type = Shaft
connected_components = 'motor compressor'
initial_speed = 100
[]
[]
[Functions]
[Rp00]
type = PiecewiseLinear
x = '0 0.3736 0.4216'
y = '1 0.9701 0.9619'
[]
[eff00]
type = PiecewiseLinear
x = '0 0.3736 0.4216'
y = '0.001 0.8941 0.6641'
[]
[Rp04]
type = PiecewiseLinear
x = '0.3736 0.3745 0.3753 0.3762 0.3770 0.3919 0.4067 0.4216 0.4826'
y = '1.0789 1.0779 1.0771 1.0759 1.0749 1.0570 1.0388 1.0204 0.9450'
[]
[eff04]
type = PiecewiseLinear
x = '0.3736 0.3745 0.3753 0.3762 0.3770 0.3919 0.4067 0.4216 0.4826'
y = '0.8941 0.8929 0.8925 0.8915 0.8901 0.8601 0.7986 0.6641 0.1115'
[]
[Rp05]
type = PiecewiseLinear
x = '0.3736 0.4026 0.4106 0.4186 0.4266 0.4346 0.4426 0.4506 0.4586 0.4666 0.4746 0.4826 0.5941'
y = '1.2898 1.2442 1.2316 1.2189 1.2066 1.1930 1.1804 1.1677 1.1542 1.1413 1.1279 1.1150 0.9357'
[]
[eff05]
type = PiecewiseLinear
x = '0.3736 0.4026 0.4106 0.4186 0.4266 0.4346 0.4426 0.4506 0.4586 0.4666 0.4746 0.4826 0.5941'
y = '0.9281 0.9263 0.9258 0.9244 0.9226 0.9211 0.9195 0.9162 0.9116 0.9062 0.8995 0.8914 0.7793'
[]
[Rp06]
type = PiecewiseLinear
x = '0.4026 0.4613 0.4723 0.4834 0.4945 0.5055 0.5166 0.5277 0.5387 0.5609 0.5719 0.583 0.5941 0.7124'
y = '1.5533 1.4438 1.4232 1.4011 1.3793 1.3589 1.3354 1.3100 1.2867 1.2376 1.2131 1.1887 1.1636 0.896'
[]
[eff06]
type = PiecewiseLinear
x = '0.4026 0.4613 0.4723 0.4834 0.4945 0.5055 0.5166 0.5277 0.5387 0.5609 0.5719 0.583 0.5941 0.7124'
y = '0.9148 0.9255 0.9275 0.9277 0.9282 0.9295 0.9290 0.9269 0.9242 0.9146 0.9080 0.900 0.8920 0.8061'
[]
[Rp07]
type = PiecewiseLinear
x = '0.4613 0.5447 0.5587 0.5726 0.5866 0.6006 0.6145 0.6285 0.6425 0.6565 0.6704 0.6844 0.6984 0.7124 0.8358'
y = '1.8740 1.6857 1.6541 1.6168 1.5811 1.5430 1.5067 1.4684 1.4292 1.3891 1.3479 1.3061 1.2628 1.2208 0.8498'
[]
[eff07]
type = PiecewiseLinear
x = '0.4613 0.5447 0.5587 0.5726 0.5866 0.6006 0.6145 0.6285 0.6425 0.6565 0.6704 0.6844 0.6984 0.7124 0.8358'
y = '0.9004 0.9232 0.9270 0.9294 0.9298 0.9312 0.9310 0.9290 0.9264 0.9225 0.9191 0.9128 0.9030 0.8904 0.7789'
[]
[Rp08]
type = PiecewiseLinear
x = '0.5447 0.6638 0.6810 0.6982 0.7154 0.7326 0.7498 0.7670 0.7842 0.8014 0.8186 0.8358 0.9702'
y = '2.3005 1.9270 1.8732 1.8195 1.7600 1.7010 1.6357 1.5697 1.5019 1.4327 1.3638 1.2925 0.7347'
[]
[eff08]
type = PiecewiseLinear
x = '0.5447 0.6638 0.6810 0.6982 0.7154 0.7326 0.7498 0.7670 0.7842 0.8014 0.8186 0.8358 0.9702'
y = '0.9102 0.9276 0.9301 0.9313 0.9319 0.9318 0.9293 0.9256 0.9231 0.9153 0.9040 0.8933 0.8098'
[]
[Rp09]
type = PiecewiseLinear
x = '0.6638 0.7762 0.7938 0.8115 0.8291 0.8467 0.8644 0.8820 0.8997 0.9173 0.9349 0.9526 0.9702 1.1107 1.25120'
y = '2.6895 2.2892 2.2263 2.1611 2.0887 2.0061 1.9211 1.8302 1.7409 1.6482 1.5593 1.4612 1.3586 0.5422 -0.2742'
[]
[eff09]
type = PiecewiseLinear
x = '0.6638 0.7762 0.7938 0.8115 0.8291 0.8467 0.8644 0.8820 0.8997 0.9173 0.9349 0.9526 0.9702 1.1107 1.2512'
y = '0.8961 0.9243 0.9288 0.9323 0.9330 0.9325 0.9319 0.9284 0.9254 0.9215 0.9134 0.9051 0.8864 0.7380 0.5896'
[]
[Rp10]
type = PiecewiseLinear
x = '0.7762 0.9255 0.9284 0.9461 0.9546 0.9816 0.9968 1.0170 1.039 1.0525 1.0812 1.0880 1.1056 1.1107 1.2511'
y = '3.3162 2.6391 2.6261 2.5425 2.5000 2.3469 2.2521 2.1211 1.974 1.8806 1.6701 1.6169 1.4710 1.4257 0.1817'
[]
[eff10]
type = PiecewiseLinear
x = '0.7762 0.9255 0.9284 0.9461 0.9546 0.9816 0.9968 1.0170 1.0390 1.0525 1.0812 1.0880 1.1056 1.1107 1.2511'
y = '0.8991 0.9276 0.9281 0.9308 0.9317 0.9329 0.9318 0.9291 0.9252 0.9223 0.9116 0.9072 0.8913 0.8844 0.6937'
[]
[Rp11]
type = PiecewiseLinear
x = '0.9255 1.0749 1.134 1.2511'
y = '3.9586 2.9889 2.605 1.4928'
[]
[eff11]
type = PiecewiseLinear
x = '0.9255 1.0749 1.1340 1.2511'
y = '0.9257 0.9308 0.9328 0.8823'
[]
[S_energy_fcn]
type = ParsedFunction
value = '-(tau_isen+tau_diss)*omega'
vars = 'tau_isen tau_diss omega'
vals = 'compressor:isentropic_torque compressor:dissipation_torque shaft:omega'
[]
[energy_conservation_fcn]
type = ParsedFunction
value = '(E_change - S_energy * dt) / E_tot'
vars = 'E_change S_energy dt E_tot'
vals = 'E_change S_energy ${dt} E_tot'
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[mass_compressor]
type = ScalarVariable
variable = compressor:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_compressor'
execute_on = 'initial timestep_end'
[]
[mass_conservation]
type = ChangeOverTimePostprocessor
postprocessor = mass_tot
change_with_respect_to_initial = true
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[E_compressor]
type = ScalarVariable
variable = compressor:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = LinearCombinationPostprocessor
pp_coefs = '1 1'
pp_names = 'E_pipes E_compressor'
execute_on = 'initial timestep_end'
[]
[S_energy]
type = FunctionValuePostprocessor
function = S_energy_fcn
execute_on = 'initial timestep_end'
[]
[E_change]
type = ChangeOverTimePostprocessor
postprocessor = E_tot
execute_on = 'initial timestep_end'
[]
# This should also execute on initial. This value is
# lagged by one timestep as a workaround to moose issue #13262.
[energy_conservation]
type = FunctionValuePostprocessor
function = energy_conservation_fcn
execute_on = 'timestep_end'
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
dt = ${dt}
num_steps = 6
solve_type = 'NEWTON'
line_search = 'basic'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-6
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
velocity_as_vector = false
[]
(test/tests/ics/component_ic/component_ic.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 2
ny = 2
[]
[Variables]
[./u]
order = FIRST
family = LAGRANGE
[../]
[./v]
order = SECOND
family = SCALAR
[../]
[]
[AuxVariables]
[./a]
order = SECOND
family = SCALAR
[../]
[]
[ICs]
[./v_ic]
type = ScalarComponentIC
variable = 'v'
values = '1 2'
[../]
[./a_ic]
type = ScalarComponentIC
variable = 'a'
values = '4 5'
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[ScalarKernels]
[./ask]
type = AlphaCED
variable = v
value = 100
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = 3
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = 1
value = 1
[../]
[]
[Postprocessors]
[./v1]
type = ScalarVariable
variable = v
component = 0
execute_on = 'initial timestep_end'
[../]
[./v2]
type = ScalarVariable
variable = v
component = 1
execute_on = 'initial timestep_end'
[../]
[./a1]
type = ScalarVariable
variable = a
component = 0
execute_on = 'initial timestep_end'
[../]
[./a2]
type = ScalarVariable
variable = a
component = 1
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Steady
[]
[Outputs]
[./out]
type = Exodus
execute_scalars_on = none
[../]
[]
(examples/ex18_scalar_kernel/ex18.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 10
ny = 10
elem_type = QUAD4
[]
[Functions]
# ODEs
[./exact_x_fn]
type = ParsedFunction
value = (-1/3)*exp(-t)+(4/3)*exp(5*t)
[../]
[./exact_y_fn]
type = ParsedFunction
value = (2/3)*exp(-t)+(4/3)*exp(5*t)
[../]
[]
[Variables]
[./diffused]
order = FIRST
family = LAGRANGE
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = diffused
[../]
[./diff]
type = Diffusion
variable = diffused
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ImplicitODEx
variable = x
y = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
[./ode2]
type = ImplicitODEy
variable = y
x = x
[../]
[]
[BCs]
[./right]
type = ScalarDirichletBC
variable = diffused
boundary = 1
scalar_var = x
[../]
[./left]
type = ScalarDirichletBC
variable = diffused
boundary = 3
scalar_var = y
[../]
[]
[Postprocessors]
# to print the values of x, y into a file so we can plot it
[./x]
type = ScalarVariable
variable = x
execute_on = timestep_end
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = timestep_end
[../]
[./exact_x]
type = FunctionValuePostprocessor
function = exact_x_fn
execute_on = timestep_end
point = '0 0 0'
[../]
[./exact_y]
type = FunctionValuePostprocessor
function = exact_y_fn
execute_on = timestep_end
point = '0 0 0'
[../]
# Measure the error in ODE solution for 'x'.
[./l2err_x]
type = ScalarL2Error
variable = x
function = exact_x_fn
[../]
# Measure the error in ODE solution for 'y'.
[./l2err_y]
type = ScalarL2Error
variable = y
function = exact_y_fn
[../]
[]
[Executioner]
type = Transient
start_time = 0
dt = 0.01
num_steps = 10
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
[]
[Outputs]
exodus = true
[]
(test/tests/outputs/exodus/variable_output_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
nz = 0
zmax = 0
elem_type = QUAD4
[]
[Variables]
[./u]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxVariables]
[./aux]
family = SCALAR
[../]
[]
[Functions]
[./force]
type = ParsedFunction
value = t
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[./force]
type = BodyForce
variable = u
function = force
[../]
[]
[BCs]
[./right]
type = DirichletBC
variable = u
boundary = right
value = 1
[../]
[./left]
type = DirichletBC
variable = u
boundary = left
value = 0
[../]
[]
[Executioner]
type = Transient
num_steps = 4
dt = 1
solve_type = PJFNK
[]
[Adaptivity]
steps = 1
marker = box
max_h_level = 2
[./Markers]
[./box]
bottom_left = '0.3 0.3 0'
inside = refine
top_right = '0.6 0.6 0'
outside = do_nothing
type = BoxMarker
[../]
[../]
[]
[Postprocessors]
[./aux_pp]
type = ScalarVariable
variable = aux
outputs = none
[../]
[]
[Outputs]
execute_on = 'timestep_end'
[./exodus]
type = Exodus
file_base = new_out
hide_variables = 'u box aux_pp'
scalar_as_nodal = true
execute_scalars_on = none
[../]
[./console]
Type = Console
[../]
[]
(modules/thermal_hydraulics/test/tests/components/junction_parallel_channels_1phase/conservation.i)
# Junction between 2 pipes where the second has half the area of the first.
# The momentum density of the second should be twice that of the first.
[GlobalParams]
gravity_vector = '0 0 0'
initial_T = 300
initial_p = 1e5
initial_vel = 20
initial_vel_x = 20
initial_vel_y = 0
initial_vel_z = 0
f = 0
fp = eos
scaling_factor_1phase = '1 1e-2 1e-5'
closures = simple_closures
[]
[Modules/FluidProperties]
[eos]
type = StiffenedGasFluidProperties
gamma = 1.4
cv = 725
p_inf = 0
q = 0
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
A = 1
n_elems = 20
[]
[junction1]
type = JunctionParallelChannels1Phase
connections = 'pipe1:out pipe2:in'
scaling_factor_rhouV = 1e-4
scaling_factor_rhoEV = 1e-5
position = '1 0 0'
volume = 1e-2
[]
[pipe2]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '1 0 0'
length = 1
A = 0.5
n_elems = 20
[]
[junction2]
type = JunctionParallelChannels1Phase
connections = 'pipe2:out pipe1:in'
scaling_factor_rhouV = 1e-4
scaling_factor_rhoEV = 1e-5
position = '1 0 0'
volume = 1e-2
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 0.05
num_steps = 5
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = basic
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 20
l_tol = 1e-3
l_max_its = 20
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe1 pipe2'
execute_on = 'initial timestep_end'
[]
[mass_junction1]
type = ScalarVariable
variable = junction1:rhoV
execute_on = 'initial timestep_end'
[]
[mass_junction2]
type = ScalarVariable
variable = junction2:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_junction1 mass_junction2'
execute_on = 'initial timestep_end'
[]
[mass_tot_change]
type = ChangeOverTimePostprocessor
change_with_respect_to_initial = true
postprocessor = mass_tot
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe1 pipe2'
execute_on = 'initial timestep_end'
[]
[E_junction1]
type = ScalarVariable
variable = junction1:rhoEV
execute_on = 'initial timestep_end'
[]
[E_junction2]
type = ScalarVariable
variable = junction2:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = SumPostprocessor
values = 'E_pipes E_junction1 E_junction2'
execute_on = 'initial timestep_end'
[]
[E_tot_change]
type = ChangeOverTimePostprocessor
change_with_respect_to_initial = true
postprocessor = E_tot
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
[]
[Outputs]
[out]
type = CSV
show = 'mass_tot_change E_tot_change'
[]
[]
(modules/thermal_hydraulics/test/tests/components/pump_1phase/pump_pressure_check.i)
# This test checks that the expected pressure rise due to the user supplied
# pump head matches the actual pressure rise across the pump.
# The orientation of flow channels in this test have no components in the z-direction
# due to the expected_pressure_rise_fcn not accounting for hydrostatic pressure.
head = 95.
dt = 0.1
g = 9.81
volume = 0.567
[GlobalParams]
initial_T = 393.15
initial_vel = 0.0372
A = 0.567
f = 0
fp = fp
scaling_factor_1phase = '1 1 1e-5'
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
q = -1167e3
q_prime = 0
p_inf = 1.e9
cv = 1816
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Functions]
[expected_pressure_rise_fcn]
type = ParsedFunction
value = 'rhoV * g * head / volume'
vars = 'rhoV g head volume'
vals = 'pump:rhoV ${g} ${head} ${volume}'
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 20
T = 393.15
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
initial_p = 1.318964e+07
n_elems = 10
[]
[pump]
type = Pump1Phase
connections = 'pipe1:out pipe2:in'
position = '1.02 0 0'
initial_p = 1.318964e+07
scaling_factor_rhoEV = 1e-5
head = ${head}
volume = ${volume}
A_ref = 0.567
initial_vel_x = 1
initial_vel_y = 1
initial_vel_z = 0
[]
[pipe2]
type = FlowChannel1Phase
position = '1.04 0 0'
orientation = '0 2 0'
length = 0.96
initial_p = 1.4072E+07
n_elems = 10
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1.4072E+07
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
start_time = 0
dt = ${dt}
num_steps = 4
abort_on_solve_fail = true
solve_type = 'PJFNK'
line_search = 'basic'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-6
nl_max_its = 15
l_tol = 1e-4
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Postprocessors]
[pump_rhoV]
type = ScalarVariable
variable = pump:rhoV
execute_on = 'initial timestep_end'
[]
[expected_pressure_rise]
type = FunctionValuePostprocessor
function = expected_pressure_rise_fcn
execute_on = 'initial linear'
[]
[p_inlet]
type = SideAverageValue
variable = p
boundary = 'pipe1:out'
execute_on = 'initial linear'
[]
[p_outlet]
type = SideAverageValue
variable = p
boundary = 'pipe2:in'
execute_on = 'initial linear'
[]
[actual_pressure_rise]
type = DifferencePostprocessor
value1 = p_outlet
value2 = p_inlet
execute_on = 'timestep_end'
[]
[pressure_rise_diff]
type = RelativeDifferencePostprocessor
value1 = actual_pressure_rise
value2 = expected_pressure_rise
execute_on = 'timestep_end'
[]
[]
[Outputs]
[out]
type = CSV
execute_on = 'FINAL'
show = 'pressure_rise_diff'
[]
[]
(test/tests/outputs/variables/output_vars_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 10
ny = 10
elem_type = QUAD9
[]
[Variables]
[./u]
order = FIRST
family = LAGRANGE
[../]
[./v]
order = SECOND
family = LAGRANGE
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[AuxVariables]
[./elemental]
order = CONSTANT
family = MONOMIAL
[../]
[./elemental_restricted]
order = CONSTANT
family = MONOMIAL
[../]
[./nodal]
order = FIRST
family = LAGRANGE
[../]
[./nodal_restricted]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = u
[../]
[./diff_u]
type = Diffusion
variable = u
[../]
[./conv_u]
type = CoupledForce
variable = u
v = v
[../]
[./diff_v]
type = Diffusion
variable = v
[../]
[]
[AuxKernels]
[./elemental]
type = ConstantAux
variable = elemental
value = 1
[../]
[./elemental_restricted]
type = ConstantAux
variable = elemental_restricted
value = 1
[../]
[./nodal]
type = ConstantAux
variable = elemental
value = 2
[../]
[./nodal_restricted]
type = ConstantAux
variable = elemental_restricted
value = 2
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ImplicitODEx
variable = x
y = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
[./ode2]
type = ImplicitODEy
variable = y
x = x
[../]
[]
[BCs]
active = 'left_u right_u left_v'
[./left_u]
type = DirichletBC
variable = u
boundary = 1
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 3
value = 9
[../]
[./left_v]
type = DirichletBC
variable = v
boundary = 1
value = 5
[../]
[./right_v]
type = DirichletBC
variable = v
boundary = 2
value = 2
[../]
[]
[Postprocessors]
[./x]
type = ScalarVariable
variable = x
execute_on = 'initial timestep_end'
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
dt = 0.01
num_steps = 1
[]
[Outputs]
show = 'x u nodal elemental'
[./out]
type = Exodus
elemental_as_nodal = true
scalar_as_nodal = true
[../]
[]
(test/tests/outputs/variables/output_vars_nonexistent.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 10
ny = 10
elem_type = QUAD9
[]
[Variables]
[./u]
order = FIRST
family = LAGRANGE
[../]
[./v]
order = SECOND
family = LAGRANGE
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[AuxVariables]
[./elemental]
order = CONSTANT
family = MONOMIAL
[../]
[./elemental_restricted]
order = CONSTANT
family = MONOMIAL
[../]
[./nodal]
order = FIRST
family = LAGRANGE
[../]
[./nodal_restricted]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = u
[../]
[./diff_u]
type = Diffusion
variable = u
[../]
[./conv_u]
type = CoupledForce
variable = u
v = v
[../]
[./diff_v]
type = Diffusion
variable = v
[../]
[]
[AuxKernels]
[./elemental]
type = ConstantAux
variable = elemental
value = 1
[../]
[./elemental_restricted]
type = ConstantAux
variable = elemental_restricted
value = 1
[../]
[./nodal]
type = ConstantAux
variable = elemental
value = 2
[../]
[./nodal_restricted]
type = ConstantAux
variable = elemental_restricted
value = 2
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ImplicitODEx
variable = x
y = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
[./ode2]
type = ImplicitODEy
variable = y
x = x
[../]
[]
[BCs]
active = 'left_u right_u left_v'
[./left_u]
type = DirichletBC
variable = u
boundary = 1
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 3
value = 9
[../]
[./left_v]
type = DirichletBC
variable = v
boundary = 1
value = 5
[../]
[./right_v]
type = DirichletBC
variable = v
boundary = 2
value = 2
[../]
[]
[Postprocessors]
[./x]
type = ScalarVariable
variable = x
execute_on = timestep_end
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = timestep_end
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
dt = 0.01
num_steps = 10
[]
[Outputs]
file_base = out_nonexistent
exodus = true
show = 'u elemental nodal x foo1 foo2'
[]
(modules/thermal_hydraulics/test/tests/components/junction_parallel_channels_1phase/equal_area_with_junction.i)
# Tests a junction between 2 flow channels of equal area and orientation. A
# sinusoidal density shape is advected to the right and should not be affected
# by the junction; the solution should be identical to the equivalent
# no-junction solution.
[GlobalParams]
gravity_vector = '0 0 0'
initial_p = 1e5
initial_vel = 1
A = 25
f = 0
fp = fp
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 1.4
cv = 725
p_inf = 0
q = 0
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Functions]
[T0]
type = CosineHumpFunction
axis = x
hump_center_position = 1
hump_width = 0.5
hump_begin_value = 250
hump_center_value = 300
[]
[]
[Components]
[inlet]
type = InletStagnationPressureTemperature1Phase
input = 'pipe1:in'
# Stagnation property with p = 1e5 Pa, T = 250 K, vel = 1 m/s
p0 = 100000.68965687
T0 = 250.00049261084
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
initial_T = T0
n_elems = 25
[]
[junction]
type = JunctionParallelChannels1Phase
connections = 'pipe1:out pipe2:in'
position = '1.02 0 0'
volume = 1.0
initial_T = T0
initial_vel_x = 1
initial_vel_y = 0
initial_vel_z = 0
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhovV = 1
scaling_factor_rhowV = 1
scaling_factor_rhoEV = 1e-5
[]
[pipe2]
type = FlowChannel1Phase
position = '1.04 0 0'
orientation = '1 0 0'
length = 0.96
initial_T = T0
n_elems = 24
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e5
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 0.01
num_steps = 5
abort_on_solve_fail = true
solve_type = 'NEWTON'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
line_search = 'basic'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 10
l_tol = 1e-3
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Postprocessors]
[junction_rho]
type = ScalarVariable
variable = junction:rhoV
execute_on = 'initial timestep_end'
[]
[junction_rhou]
type = ScalarVariable
variable = junction:rhouV
execute_on = 'initial timestep_end'
[]
[junction_rhoE]
type = ScalarVariable
variable = junction:rhoEV
execute_on = 'initial timestep_end'
[]
[]
[Outputs]
[out]
type = CSV
execute_scalars_on = 'none'
execute_on = 'initial timestep_end'
[]
[]
(test/tests/auxkernels/function_scalar_aux/function_scalar_aux.i)
#
# Testing a solution that is second order in space and first order in time
#
[Mesh]
type = GeneratedMesh
dim = 2
xmin = -1
xmax = 1
ymin = -1
ymax = 1
nx = 10
ny = 10
elem_type = QUAD9
[]
[AuxVariables]
[./x]
family = SCALAR
order = FIRST
[../]
[]
[Variables]
[./u]
order = SECOND
family = LAGRANGE
[./InitialCondition]
type = ConstantIC
value = 0
[../]
[../]
[]
[Functions]
[./forcing_fn]
type = ParsedFunction
value = ((x*x)+(y*y))-(4*t)
[../]
[./exact_fn]
type = ParsedFunction
value = t*((x*x)+(y*y))
[../]
[./x_fn]
type = ParsedFunction
value = t
[../]
[]
[AuxScalarKernels]
[./x_saux]
type = FunctionScalarAux
variable = x
function = x_fn
[../]
[]
[Kernels]
[./ie]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./ffn]
type = BodyForce
variable = u
function = forcing_fn
[../]
[]
[BCs]
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = exact_fn
[../]
[]
[Postprocessors]
[./l2_err]
type = ElementL2Error
variable = u
function = exact_fn
[../]
[./x]
type = ScalarVariable
variable = x
[../]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
solve_type = 'PJFNK'
start_time = 0.0
num_steps = 5
dt = 0.25
[]
[Outputs]
exodus = true
[]
(modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/phy.conservation.i)
[GlobalParams]
initial_p = 1e6
initial_T = 517
initial_vel = 4.3
initial_vel_x = 4.3
initial_vel_y = 0
initial_vel_z = 0
fp = fp
closures = simple_closures
f = 0
rdg_slope_reconstruction = minmod
gravity_vector = '0 0 0'
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
gamma = 1.4
molar_mass = 0.01
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 10
T = 517
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 1
[]
[turbine]
type = SimpleTurbine1Phase
connections = 'pipe1:out pipe2:in'
position = '1 0 0'
volume = 1
A_ref = 1.0
K = 0
on = true
power = 1000
[]
[pipe2]
type = FlowChannel1Phase
position = '1. 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 1
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e6
[]
[]
[Postprocessors]
[mass_in]
type = ADFlowBoundaryFlux1Phase
equation = mass
boundary = inlet
[]
[mass_out]
type = ADFlowBoundaryFlux1Phase
equation = mass
boundary = outlet
[]
[mass_diff]
type = LinearCombinationPostprocessor
pp_coefs = '1 -1'
pp_names = 'mass_in mass_out'
[]
[p_in]
type = SideAverageValue
boundary = pipe1:in
variable = p
[]
[vel_in]
type = SideAverageValue
boundary = pipe1:in
variable = vel_x
[]
[momentum_in]
type = ADFlowBoundaryFlux1Phase
equation = momentum
boundary = inlet
[]
[momentum_out]
type = ADFlowBoundaryFlux1Phase
equation = momentum
boundary = outlet
[]
[dP]
type = ParsedPostprocessor
pp_names = 'p_in W_dot'
function = 'p_in * (1 - (1-W_dot/(10*2910.06*517))^(1.4/0.4))'
[]
[momentum_diff]
type = LinearCombinationPostprocessor
pp_coefs = '1 -1 -1'
pp_names = 'momentum_in momentum_out dP' # momentum source = -dP * A and A=1
[]
[energy_in]
type = ADFlowBoundaryFlux1Phase
equation = energy
boundary = inlet
[]
[energy_out]
type = ADFlowBoundaryFlux1Phase
equation = energy
boundary = outlet
[]
[W_dot]
type = ScalarVariable
variable = turbine:W_dot
[]
[energy_diff]
type = LinearCombinationPostprocessor
pp_coefs = '1 -1 -1'
pp_names = 'energy_in energy_out W_dot'
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
start_time = 0
dt = 1
num_steps = 30
abort_on_solve_fail = true
solve_type = 'newton'
line_search = 'basic'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
nl_rel_tol = 1e-7
nl_abs_tol = 2e-6
nl_max_its = 10
l_tol = 1e-3
[]
[Outputs]
[csv]
type = CSV
show = 'mass_diff energy_diff momentum_diff'
execute_on = 'final'
[]
[]
(test/tests/kernels/ode/coupled_ode_td.i)
[Mesh]
type = GeneratedMesh
dim = 1
xmin = 0
xmax = 1
nx = 1
[]
[Variables]
[./f]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./f_times_mult]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[]
[ScalarKernels]
[./dT]
type = CoupledODETimeDerivative
variable = f
v = f_times_mult
[../]
[./src]
type = ParsedODEKernel
variable = f
function = '-1'
[../]
[./f_times_mult_1]
type = ParsedODEKernel
variable = f_times_mult
function = 'f_times_mult'
[../]
[./f_times_mult_2]
type = ParsedODEKernel
variable = f_times_mult
function = '-f * g'
args = 'f g'
[../]
[]
[AuxVariables]
[./g]
family = SCALAR
order = FIRST
[../]
[]
[Functions]
[./function_g]
type = ParsedFunction
value = '(1 + t)'
[../]
[]
[AuxScalarKernels]
[./set_g]
type = FunctionScalarAux
function = function_g
variable = g
execute_on = 'linear initial'
[../]
[]
[Postprocessors]
[./f]
type = ScalarVariable
variable = f
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
dt = 1
num_steps = 3
nl_abs_tol = 1e-9
[]
[Outputs]
csv = true
[]
(modules/thermal_hydraulics/test/tests/problems/brayton_cycle/closed_brayton_cycle.i)
# This input file is used to demonstrate a simple closed, air Brayton cycle using
# a compressor, turbine, shaft, motor, and generator.
# The flow length is divided into 6 segments as illustrated below, where
# - "(C)" denotes the compressor
# - "(T)" denotes the turbine
# - "*" denotes a fictitious junction
#
# Heated section Cooled section
# *-----(C)-----*--------------*-----(T)-----*--------------*
# 1 2 3 4 5 6
#
# Initially the fluid is at rest at ambient conditions, the shaft speed is zero,
# and no heat transfer occurs with the system.
# The transient is controlled as follows:
# * 0 - 100 s: motor ramps up torque linearly from zero
# * 100 - 200 s: motor ramps down torque linearly to zero, HTC ramps up linearly from zero.
# * 200 - 300 s: (no changes; should approach steady condition)
I_motor = 1.0
motor_torque_max = 400.0
I_generator = 1.0
generator_torque_per_shaft_speed = -0.00025
motor_ramp_up_duration = 100.0
motor_ramp_down_duration = 100.0
post_motor_time = 100.0
t1 = ${motor_ramp_up_duration}
t2 = ${fparse t1 + motor_ramp_down_duration}
t3 = ${fparse t2 + post_motor_time}
D1 = 0.15
D2 = ${D1}
D3 = ${D1}
D4 = ${D1}
D5 = ${D1}
D6 = ${D1}
A1 = ${fparse 0.25 * pi * D1^2}
A2 = ${fparse 0.25 * pi * D2^2}
A3 = ${fparse 0.25 * pi * D3^2}
A4 = ${fparse 0.25 * pi * D4^2}
A5 = ${fparse 0.25 * pi * D5^2}
A6 = ${fparse 0.25 * pi * D6^2}
L1 = 10.0
L2 = ${L1}
L3 = ${L1}
L4 = ${L1}
L5 = ${L1}
L6 = ${L1}
x1 = 0.0
x2 = ${fparse x1 + L1}
x3 = ${fparse x2 + L2}
x4 = ${fparse x3 + L3}
x5 = ${fparse x4 + L4}
x6 = ${fparse x5 + L5}
x2_minus = ${fparse x2 - 0.001}
x2_plus = ${fparse x2 + 0.001}
x5_minus = ${fparse x5 - 0.001}
x5_plus = ${fparse x5 + 0.001}
n_elems1 = 10
n_elems2 = ${n_elems1}
n_elems3 = ${n_elems1}
n_elems4 = ${n_elems1}
n_elems5 = ${n_elems1}
n_elems6 = ${n_elems1}
A_ref_comp = ${fparse 0.5 * (A1 + A2)}
V_comp = ${fparse A_ref_comp * 1.0}
I_comp = 1.0
A_ref_turb = ${fparse 0.5 * (A4 + A5)}
V_turb = ${fparse A_ref_turb * 1.0}
I_turb = 1.0
c0_rated_comp = 351.6925137
rho0_rated_comp = 1.146881112
rated_mfr = 0.25
speed_rated_rpm = 96000
speed_rated = ${fparse speed_rated_rpm * 2 * pi / 60.0}
speed_initial = 0
eff_comp = 0.79
eff_turb = 0.843
T_hot = 1000
T_cold = 300
T_ambient = 300
p_ambient = 1e5
[GlobalParams]
orientation = '1 0 0'
gravity_vector = '0 0 0'
initial_p = ${p_ambient}
initial_T = ${T_ambient}
initial_vel = 0
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
fp = fp_air
closures = closures
f = 0
scaling_factor_1phase = '1 1 1e-5'
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhovV = 1
scaling_factor_rhowV = 1
scaling_factor_rhoEV = 1e-5
rdg_slope_reconstruction = none
[]
[Functions]
[motor_torque_fn]
type = PiecewiseLinear
x = '0 ${t1} ${t2}'
y = '0 ${motor_torque_max} 0'
[]
[motor_power_fn]
type = ParsedFunction
value = 'torque * speed'
vars = 'torque speed'
vals = 'motor_torque shaft:omega'
[]
[generator_torque_fn]
type = ParsedFunction
value = 'slope * t'
vars = 'slope'
vals = '${generator_torque_per_shaft_speed}'
[]
[generator_power_fn]
type = ParsedFunction
value = 'torque * speed'
vars = 'torque speed'
vals = 'generator_torque shaft:omega'
[]
[htc_wall_fn]
type = PiecewiseLinear
x = '0 ${t1} ${t2}'
y = '0 0 1e3'
[]
[]
[Modules/FluidProperties]
[fp_air]
type = IdealGasFluidProperties
emit_on_nan = none
[]
[]
[Closures]
[closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[shaft]
type = Shaft
connected_components = 'motor compressor turbine generator'
initial_speed = ${speed_initial}
[]
[motor]
type = ShaftConnectedMotor
inertia = ${I_motor}
torque = 0 # controlled
[]
[generator]
type = ShaftConnectedMotor
inertia = ${I_generator}
torque = generator_torque_fn
[]
[pipe1]
type = FlowChannel1Phase
position = '${x1} 0 0'
length = ${L1}
n_elems = ${n_elems1}
A = ${A1}
[]
[compressor]
type = ShaftConnectedCompressor1Phase
position = '${x2} 0 0'
inlet = 'pipe1:out'
outlet = 'pipe2:in'
A_ref = ${A_ref_comp}
volume = ${V_comp}
omega_rated = ${speed_rated}
mdot_rated = ${rated_mfr}
c0_rated = ${c0_rated_comp}
rho0_rated = ${rho0_rated_comp}
speeds = '0.5208 0.6250 0.7292 0.8333 0.9375'
Rp_functions = 'rp_comp1 rp_comp2 rp_comp3 rp_comp4 rp_comp5'
eff_functions = 'eff_comp1 eff_comp2 eff_comp3 eff_comp4 eff_comp5'
min_pressure_ratio = 1.0
speed_cr_I = 0
inertia_const = ${I_comp}
inertia_coeff = '${I_comp} 0 0 0'
# assume no shaft friction
speed_cr_fr = 0
tau_fr_const = 0
tau_fr_coeff = '0 0 0 0'
[]
[pipe2]
type = FlowChannel1Phase
position = '${x2} 0 0'
length = ${L2}
n_elems = ${n_elems2}
A = ${A2}
[]
[junction2_3]
type = JunctionOneToOne1Phase
connections = 'pipe2:out pipe3:in'
[]
[pipe3]
type = FlowChannel1Phase
position = '${x3} 0 0'
length = ${L3}
n_elems = ${n_elems3}
A = ${A3}
[]
[junction3_4]
type = JunctionOneToOne1Phase
connections = 'pipe3:out pipe4:in'
[]
[pipe4]
type = FlowChannel1Phase
position = '${x4} 0 0'
length = ${L4}
n_elems = ${n_elems4}
A = ${A4}
[]
[turbine]
type = ShaftConnectedCompressor1Phase
position = '${x5} 0 0'
inlet = 'pipe4:out'
outlet = 'pipe5:in'
A_ref = ${A_ref_turb}
volume = ${V_turb}
treat_as_turbine = true
omega_rated = ${speed_rated}
mdot_rated = ${rated_mfr}
c0_rated = ${c0_rated_comp}
rho0_rated = ${rho0_rated_comp}
speeds = '0 0.5208 0.6250 0.7292 0.8333 0.9375'
Rp_functions = 'rp_turb0 rp_turb1 rp_turb2 rp_turb3 rp_turb4 rp_turb5'
eff_functions = 'eff_turb1 eff_turb1 eff_turb2 eff_turb3 eff_turb4 eff_turb5'
min_pressure_ratio = 1.0
speed_cr_I = 0
inertia_const = ${I_turb}
inertia_coeff = '${I_turb} 0 0 0'
# assume no shaft friction
speed_cr_fr = 0
tau_fr_const = 0
tau_fr_coeff = '0 0 0 0'
[]
[pipe5]
type = FlowChannel1Phase
position = '${x5} 0 0'
length = ${L5}
n_elems = ${n_elems5}
A = ${A5}
[]
[junction5_6]
type = JunctionOneToOne1Phase
connections = 'pipe5:out pipe6:in'
[]
[pipe6]
type = FlowChannel1Phase
position = '${x6} 0 0'
length = ${L6}
n_elems = ${n_elems6}
A = ${A6}
[]
[junction6_1]
type = JunctionOneToOne1Phase
connections = 'pipe6:out pipe1:in'
[]
[heating]
type = HeatTransferFromSpecifiedTemperature1Phase
flow_channel = pipe3
T_wall = ${T_hot}
Hw = htc_wall_fn
[]
[cooling]
type = HeatTransferFromSpecifiedTemperature1Phase
flow_channel = pipe6
T_wall = ${T_cold}
Hw = htc_wall_fn
[]
[]
[ControlLogic]
[motor_ctrl]
type = TimeFunctionComponentControl
component = motor
parameter = torque
function = motor_torque_fn
[]
[]
[Postprocessors]
[heating_rate]
type = ADHeatRateConvection1Phase
block = 'pipe3'
T = T
T_wall = T_wall
Hw = Hw
P_hf = P_hf
execute_on = 'INITIAL TIMESTEP_END'
[]
[cooling_rate]
type = ADHeatRateConvection1Phase
block = 'pipe6'
T = T
T_wall = T_wall
Hw = Hw
P_hf = P_hf
execute_on = 'INITIAL TIMESTEP_END'
[]
[motor_torque]
type = RealComponentParameterValuePostprocessor
component = motor
parameter = torque
execute_on = 'INITIAL TIMESTEP_END'
[]
[motor_power]
type = FunctionValuePostprocessor
function = motor_power_fn
execute_on = 'INITIAL TIMESTEP_END'
[]
[generator_torque]
type = ShaftConnectedComponentPostprocessor
quantity = torque
shaft_connected_component_uo = generator:shaftconnected_uo
execute_on = 'INITIAL TIMESTEP_END'
[]
[generator_power]
type = FunctionValuePostprocessor
function = generator_power_fn
execute_on = 'INITIAL TIMESTEP_END'
[]
[shaft_speed]
type = ScalarVariable
variable = 'shaft:omega'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_in_comp]
type = PointValue
variable = p
point = '${x2_minus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_out_comp]
type = PointValue
variable = p
point = '${x2_plus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_ratio_comp]
type = ParsedPostprocessor
pp_names = 'p_in_comp p_out_comp'
function = 'p_out_comp / p_in_comp'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_in_turb]
type = PointValue
variable = p
point = '${x5_minus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_out_turb]
type = PointValue
variable = p
point = '${x5_plus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_ratio_turb]
type = ParsedPostprocessor
pp_names = 'p_in_turb p_out_turb'
function = 'p_in_turb / p_out_turb'
execute_on = 'INITIAL TIMESTEP_END'
[]
[mfr_comp]
type = ADFlowJunctionFlux1Phase
boundary = pipe1:out
connection_index = 0
equation = mass
junction = compressor
[]
[mfr_turb]
type = ADFlowJunctionFlux1Phase
boundary = pipe4:out
connection_index = 0
equation = mass
junction = turbine
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
end_time = ${t3}
[TimeStepper]
type = IterationAdaptiveDT
dt = 0.01
optimal_iterations = 5
iteration_window = 1
growth_factor = 1.1
cutback_factor = 0.9
[]
dtmin = 1e-5
steady_state_detection = true
steady_state_start_time = ${t2}
solve_type = NEWTON
nl_rel_tol = 1e-8
nl_abs_tol = 1e-8
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[]
[Outputs]
exodus = true
[csv]
type = CSV
file_base = 'closed_brayton_cycle'
execute_vector_postprocessors_on = 'INITIAL'
[]
[console]
type = Console
show = 'shaft_speed p_ratio_comp p_ratio_turb compressor:pressure_ratio turbine:pressure_ratio'
[]
[]
[Functions]
# compressor pressure ratio
[rp_comp1]
type = PiecewiseLinear
data_file = 'rp_comp1.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp2]
type = PiecewiseLinear
data_file = 'rp_comp2.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp3]
type = PiecewiseLinear
data_file = 'rp_comp3.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp4]
type = PiecewiseLinear
data_file = 'rp_comp4.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp5]
type = PiecewiseLinear
data_file = 'rp_comp5.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
# compressor efficiency
[eff_comp1]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp2]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp3]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp4]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp5]
type = ConstantFunction
value = ${eff_comp}
[]
# turbine pressure ratio
[rp_turb0]
type = ConstantFunction
value = 1
[]
[rp_turb1]
type = PiecewiseLinear
data_file = 'rp_turb1.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb2]
type = PiecewiseLinear
data_file = 'rp_turb2.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb3]
type = PiecewiseLinear
data_file = 'rp_turb3.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb4]
type = PiecewiseLinear
data_file = 'rp_turb4.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb5]
type = PiecewiseLinear
data_file = 'rp_turb5.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
# turbine efficiency
[eff_turb1]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb2]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb3]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb4]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb5]
type = ConstantFunction
value = ${eff_turb}
[]
[]
(test/tests/outputs/nemesis/nemesis_scalar.i)
[Mesh]
type = GeneratedMesh
dim = 1
xmin = 0
xmax = 1
nx = 4
[]
[Variables]
[./f]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./f_times_mult]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[]
[ScalarKernels]
[./dT]
type = CoupledODETimeDerivative
variable = f
v = f_times_mult
[../]
[./src]
type = ParsedODEKernel
variable = f
function = '-1'
[../]
[./f_times_mult_1]
type = ParsedODEKernel
variable = f_times_mult
function = 'f_times_mult'
[../]
[./f_times_mult_2]
type = ParsedODEKernel
variable = f_times_mult
function = '-f * g'
args = 'f g'
[../]
[]
[AuxVariables]
[./g]
family = SCALAR
order = FIRST
[../]
[]
[Functions]
[./function_g]
type = ParsedFunction
value = '(1 + t)'
[../]
[]
[AuxScalarKernels]
[./set_g]
type = FunctionScalarAux
function = function_g
variable = g
execute_on = 'linear initial'
[../]
[]
[Postprocessors]
[./f]
type = ScalarVariable
variable = f
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
dt = 1
num_steps = 3
nl_abs_tol = 1e-9
[]
[Outputs]
nemesis = true
[]
(modules/thermal_hydraulics/test/tests/components/shaft_connected_turbine_1phase/shaft_motor_turbine.i)
area = 0.2359
dt = 1.e-3
[GlobalParams]
initial_p = 2e5
initial_T = 600
initial_vel = 100
initial_vel_x = 100
initial_vel_y = 0
initial_vel_z = 0
A = ${area}
A_ref = ${area}
f = 100
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
fp = fp
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[turbine]
type = ShaftConnectedTurbine1Phase
inlet = 'pipe:out'
outlet = 'pipe:in'
position = '0 0 0'
volume = 0.2
inertia_coeff = '1 1 1 1'
inertia_const = 1.61397
speed_cr_I = 1e12
speed_cr_fr = 0
tau_fr_coeff = '0 0 0 0'
tau_fr_const = 0
omega_rated = 100
D_wheel = 0.4
head_coefficient = head
power_coefficient = power
[]
[pipe]
type = FlowChannel1Phase
position = '0.1 0 0'
orientation = '1 0 0'
length = 10
n_elems = 20
initial_p = 2e6
[]
[dyno]
type = ShaftConnectedMotor
inertia = 1e2
torque = -1e3
[]
[shaft]
type = Shaft
connected_components = 'dyno turbine'
initial_speed = 300
[]
[]
[Functions]
[head]
type = PiecewiseLinear
x = '0 7e-3 1e-2'
y = '0 15 20'
[]
[power]
type = PiecewiseLinear
x = '0 6e-3 1e-2'
y = '0 0.05 0.18'
[]
[S_energy_fcn]
type = ParsedFunction
value = '-(tau_driving+tau_fr)*omega'
vars = 'tau_driving tau_fr omega'
vals = 'turbine:driving_torque turbine:friction_torque shaft:omega'
[]
[energy_conservation_fcn]
type = ParsedFunction
value = '(E_change - S_energy * dt) / E_tot'
vars = 'E_change S_energy dt E_tot'
vals = 'E_change S_energy ${dt} E_tot'
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[mass_turbine]
type = ScalarVariable
variable = turbine:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_turbine'
execute_on = 'initial timestep_end'
[]
[mass_conservation]
type = ChangeOverTimePostprocessor
postprocessor = mass_tot
change_with_respect_to_initial = true
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[E_turbine]
type = ScalarVariable
variable = turbine:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = LinearCombinationPostprocessor
pp_coefs = '1 1'
pp_names = 'E_pipes E_turbine'
execute_on = 'initial timestep_end'
[]
[S_energy]
type = FunctionValuePostprocessor
function = S_energy_fcn
execute_on = 'initial timestep_end'
[]
[E_change]
type = ChangeOverTimePostprocessor
postprocessor = E_tot
execute_on = 'initial timestep_end'
[]
# This should also execute on initial. This value is
# lagged by one timestep as a workaround to moose issue #13262.
[energy_conservation]
type = FunctionValuePostprocessor
function = energy_conservation_fcn
execute_on = 'timestep_end'
[]
[]
[Preconditioning]
[SMP]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
dt = ${dt}
num_steps = 6
solve_type = 'PJFNK'
line_search = 'basic'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-6
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/components/pump_1phase/pump_mass_energy_conservation.i)
# This test tests that mass and energy are conserved.
dt = 1.e-2
head = 95.
volume = 1.
A = 1.
g = 9.81
[GlobalParams]
initial_T = 393.15
initial_vel = 0
f = 0
fp = fp
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
A = ${A}
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
q = -1167e3
q_prime = 0
p_inf = 1.e9
cv = 1816
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[wall_in]
type = SolidWall1Phase
input = 'pipe1:in'
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
initial_p = 1.7E+07
n_elems = 10
gravity_vector = '0 0 0'
[]
[pump]
type = Pump1Phase
connections = 'pipe1:out pipe2:in'
position = '1.02 0 0'
initial_p = 1.3e+07
scaling_factor_rhoEV = 1e-5
head = ${head}
A_ref = ${A}
volume = ${volume}
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
[]
[pipe2]
type = FlowChannel1Phase
position = '1.04 0 0'
orientation = '1 0 0'
length = 1
initial_p = 1.3e+07
n_elems = 10
gravity_vector = '0 0 0'
[]
[wall_out]
type = SolidWall1Phase
input = 'pipe2:out'
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
start_time = 0
dt = ${dt}
num_steps = 6
abort_on_solve_fail = true
solve_type = 'PJFNK'
line_search = 'basic'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-6
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe1 pipe2'
execute_on = 'initial timestep_end'
[]
[mass_pump]
type = ScalarVariable
variable = pump:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_pump'
execute_on = 'initial timestep_end'
[]
[mass_tot_change]
type = ChangeOverTimePostprocessor
postprocessor = mass_tot
change_with_respect_to_initial = true
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe1 pipe2'
execute_on = 'initial timestep_end'
[]
[E_pump]
type = ScalarVariable
variable = pump:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = LinearCombinationPostprocessor
pp_coefs = '1 1'
pp_names = 'E_pipes E_pump'
execute_on = 'initial timestep_end'
[]
[S_energy]
type = FunctionValuePostprocessor
function = S_energy_fcn
execute_on = 'initial timestep_end'
[]
[E_change]
type = ChangeOverTimePostprocessor
postprocessor = E_tot
execute_on = 'initial timestep_end'
[]
# this should also execute on initial, this value is
# lagged by one timestep as a workaround to moose issue #13262
[E_conservation]
type = FunctionValuePostprocessor
function = E_conservation_fcn
execute_on = 'timestep_end'
[]
[]
[Functions]
[S_energy_fcn]
type = ParsedFunction
value = 'rhouV * g * head * A / volume'
vars = 'rhouV g head A volume'
vals = 'pump:rhouV ${g} ${head} ${A} ${volume}'
[]
[E_conservation_fcn]
type = ParsedFunction
value = '(E_change - S_energy * dt) / E_tot'
vars = 'E_change S_energy dt E_tot'
vals = 'E_change S_energy ${dt} E_tot'
[]
[]
[Outputs]
[out]
type = CSV
execute_on = 'FINAL'
show = 'mass_tot_change E_conservation'
[]
[]
(test/tests/dirackernels/aux_scalar_variable/aux_scalar_variable.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
uniform_refine = 2
[]
[Variables]
[./u]
[../]
[]
[AuxVariables]
[./shared]
family = SCALAR
initial_condition = 2
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = left
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = right
value = 1
[../]
[]
[Postprocessors]
[./source_value]
type = ScalarVariable
variable = shared
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Steady
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
[]
[Outputs]
hide = shared
exodus = true
[]
[DiracKernels]
[./source_0]
variable = u
shared = shared
type = ReportingConstantSource
point = '0.2 0.2'
[../]
[./source_1]
point = '0.8 0.8'
factor = 2
variable = u
shared = shared
type = ReportingConstantSource
[../]
[]
(modules/thermal_hydraulics/test/tests/components/shaft_connected_pump_1phase/pump_coastdown.i)
# Pump data used in this test comes from the Semiscale Program, summarized in NUREG/CR-4945
initial_T = 393.15
area = 1e-2
dt = 0.005
[GlobalParams]
initial_p = 1.4E+07
initial_T = ${initial_T}
initial_vel = 0.01
initial_vel_x = 0.01
initial_vel_y = 0
initial_vel_z = 0
A = ${area}
A_ref = ${area}
f = 100
scaling_factor_1phase = '1 1 1e-3'
closures = simple_closures
rdg_slope_reconstruction = minmod
fp = fp
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pump]
type = ShaftConnectedPump1Phase
inlet = 'pipe:out'
outlet = 'pipe:in'
position = '0 0 0'
scaling_factor_rhoEV = 1e-5
volume = 0.3
inertia_coeff = '1 1 1 1'
inertia_const = 0.5
omega_rated = 314
speed_cr_I = 1e12
speed_cr_fr = 0.001
torque_rated = 47.1825
volumetric_rated = 1
head_rated = 58.52
tau_fr_coeff = '4 0 80 0'
tau_fr_const = 8
head = head_fcn
torque_hydraulic = torque_fcn
density_rated = 124.2046
[]
[pipe]
type = FlowChannel1Phase
position = '0.6096 0 0'
orientation = '1 0 0'
length = 10
n_elems = 20
[]
[shaft]
type = Shaft
connected_components = 'pump'
initial_speed = 1
[]
[]
[Functions]
[head_fcn]
type = PiecewiseLinear
data_file = semiscale_head_data.csv
format = columns
[]
[torque_fcn]
type = PiecewiseLinear
data_file = semiscale_torque_data.csv
format = columns
[]
[S_energy_fcn]
type = ParsedFunction
value = '-tau_hyd * omega'
vars = 'tau_hyd omega'
vals = 'pump:hydraulic_torque shaft:omega'
[]
[energy_conservation_fcn]
type = ParsedFunction
value = '(E_change - S_energy * dt) / E_tot'
vars = 'E_change S_energy dt E_tot'
vals = 'E_change S_energy ${dt} E_tot'
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[mass_pump]
type = ScalarVariable
variable = pump:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_pump'
execute_on = 'initial timestep_end'
[]
[mass_conservation]
type = ChangeOverTimePostprocessor
postprocessor = mass_tot
change_with_respect_to_initial = true
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[E_pump]
type = ScalarVariable
variable = pump:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = LinearCombinationPostprocessor
pp_coefs = '1 1'
pp_names = 'E_pipes E_pump'
execute_on = 'initial timestep_end'
[]
[S_energy]
type = FunctionValuePostprocessor
function = S_energy_fcn
execute_on = 'initial timestep_end'
[]
[E_change]
type = ChangeOverTimePostprocessor
postprocessor = E_tot
execute_on = 'initial timestep_end'
[]
# This should also execute on initial. This value is
# lagged by one timestep as a workaround to moose issue #13262.
[energy_conservation]
type = FunctionValuePostprocessor
function = energy_conservation_fcn
execute_on = 'timestep_end'
[]
[]
[Preconditioning]
[SMP]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
dt = ${dt}
num_steps = 40
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-8
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
velocity_as_vector = false
exodus = true
[]
(test/tests/controls/time_periods/transfers/sub.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
[]
[Variables]
[./u]
[../]
[]
[AuxVariables]
[./from_master_app]
order = FIRST
family = SCALAR
[../]
[]
[Kernels]
[./diff]
type = CoefDiffusion
variable = u
coef = 0.01
[../]
[./td]
type = TimeDerivative
variable = u
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = left
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = right
value = 2
[../]
[]
[Postprocessors]
[./from_master]
type = ScalarVariable
variable = from_master_app
[../]
[]
[Executioner]
type = Transient
num_steps = 1
dt = 1
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
nl_rel_tol = 1e-12
[]
[Outputs]
exodus = true
hide = from_master_app
[]
(modules/thermal_hydraulics/test/tests/components/volume_junction_1phase/equal_area_with_junction.i)
# Tests a junction between 2 flow channels of equal area and orientation. A
# sinusoidal density shape is advected to the right and should not be affected
# by the junction; the solution should be identical to the equivalent
# no-junction solution.
[GlobalParams]
gravity_vector = '0 0 0'
initial_p = 1e5
initial_vel = 1
A = 25
f = 0
fp = fp
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 1.4
cv = 725
p_inf = 0
q = 0
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Functions]
[T0]
type = CosineHumpFunction
axis = x
hump_center_position = 1
hump_width = 0.5
hump_begin_value = 250
hump_center_value = 300
[]
[]
[Components]
[inlet]
type = InletStagnationPressureTemperature1Phase
input = 'pipe1:in'
# Stagnation property with p = 1e5 Pa, T = 250 K, vel = 1 m/s
p0 = 100000.68965687
T0 = 250.00049261084
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
initial_T = T0
n_elems = 25
[]
[junction]
type = VolumeJunction1Phase
connections = 'pipe1:out pipe2:in'
# NOTE: volume parameters are added via command-line arguments by tests file.
position = '1.02 0 0'
initial_T = T0
initial_vel_x = 1
initial_vel_y = 0
initial_vel_z = 0
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhovV = 1
scaling_factor_rhowV = 1
scaling_factor_rhoEV = 1e-5
[]
[pipe2]
type = FlowChannel1Phase
position = '1.04 0 0'
orientation = '1 0 0'
length = 0.96
initial_T = T0
n_elems = 24
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e5
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 0.01
num_steps = 5
abort_on_solve_fail = true
solve_type = 'PJFNK'
line_search = 'basic'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 10
l_tol = 1e-3
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Postprocessors]
[junction_rho]
type = ScalarVariable
variable = junction:rhoV
execute_on = 'initial timestep_end'
[]
[junction_rhou]
type = ScalarVariable
variable = junction:rhouV
execute_on = 'initial timestep_end'
[]
[junction_rhoE]
type = ScalarVariable
variable = junction:rhoEV
execute_on = 'initial timestep_end'
[]
[]
[Outputs]
[out]
type = CSV
execute_scalars_on = 'none'
execute_on = 'initial timestep_end'
[]
[]
(modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/clg.test.i)
[GlobalParams]
initial_p = 1e6
initial_T = 517
initial_vel = 1.0
initial_vel_x = 1
initial_vel_y = 0
initial_vel_z = 0
f = 0
fp = fp
closures = simple_closures
gravity_vector = '0 0 0'
automatic_scaling = true
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 1.43
cv = 1040.0
q = 2.03e6
p_inf = 0.0
q_prime = -2.3e4
k = 0.026
mu = 134.4e-7
M = 0.01801488
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Functions]
[W_dot_fn]
type = PiecewiseLinear
xy_data = '
0 0
1 10'
[]
[]
[Components]
[inlet]
type = InletVelocityTemperature1Phase
input = 'pipe1:in'
vel = 1
T = 517
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 1
[]
[turbine]
type = SimpleTurbine1Phase
connections = 'pipe1:out pipe2:in'
position = '1 0 0'
volume = 1
A_ref = 1.0
K = 0
on = true
power = 0
[]
[pipe2]
type = FlowChannel1Phase
position = '1. 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 1
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e6
[]
[]
[ControlLogic]
[W_dot_ctrl]
type = TimeFunctionComponentControl
component = turbine
parameter = power
function = W_dot_fn
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
start_time = 0
dt = 0.1
num_steps = 10
solve_type = 'newton'
line_search = 'basic'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
nl_rel_tol = 1e-6
nl_abs_tol = 1e-3
nl_max_its = 5
l_tol = 1e-4
abort_on_solve_fail = true
[]
[Postprocessors]
[W_dot]
type = ScalarVariable
variable = turbine:W_dot
[]
[]
[Outputs]
[csv]
type = CSV
show = 'W_dot'
[]
[]
(modules/thermal_hydraulics/test/tests/components/volume_junction_1phase/t_junction_1phase.i)
# Junction between 3 pipes, 1 of which goes to a dead-end. All ends are walls,
# and 1 of the pipes is pressurized higher than the others.
A_big = 1
A_small = 0.5
[GlobalParams]
gravity_vector = '0 0 0'
scaling_factor_1phase = '1 1 1e-5'
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhovV = 1
scaling_factor_rhowV = 1
scaling_factor_rhoEV = 1e-5
initial_T = 300
initial_vel = 0
n_elems = 20
length = 1
f = 0
fp = fp
rdg_slope_reconstruction = minmod
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 1.4
cv = 725
q = 0
q_prime = 0
p_inf = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
A = ${A_big}
# This pipe is pressurized higher than the others.
initial_p = 1.05e5
[]
[pipe2]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '1 0 0'
A = ${A_big}
initial_p = 1e5
[]
[pipe3]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '0 1 0'
# This pipe is smaller than the others.
A = ${A_small}
initial_p = 1e5
[]
[junction]
type = VolumeJunction1Phase
connections = 'pipe1:out pipe2:in pipe3:in'
position = '1 0 0'
volume = 0.37
initial_p = 1e5
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
[]
[pipe1_wall]
type = SolidWall1Phase
input = 'pipe1:in'
[]
[pipe2_wall]
type = SolidWall1Phase
input = 'pipe2:out'
[]
[pipe3_wall]
type = SolidWall1Phase
input = 'pipe3:out'
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
end_time = 5
dt = 0.05
num_steps = 5
abort_on_solve_fail = true
solve_type = 'PJFNK'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 10
l_tol = 1e-3
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe1 pipe2 pipe3'
execute_on = 'initial timestep_end'
[]
[mass_junction]
type = ScalarVariable
variable = junction:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_junction'
execute_on = 'initial timestep_end'
[]
[mass_tot_change]
type = ChangeOverTimePostprocessor
change_with_respect_to_initial = true
postprocessor = mass_tot
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe1 pipe2 pipe3'
execute_on = 'initial timestep_end'
[]
[E_junction]
type = ScalarVariable
variable = junction:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = SumPostprocessor
values = 'E_pipes E_junction'
execute_on = 'initial timestep_end'
[]
[E_tot_change]
type = ChangeOverTimePostprocessor
change_with_respect_to_initial = true
postprocessor = E_tot
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
[]
[Outputs]
[out]
type = CSV
show = 'mass_tot_change E_tot_change'
[]
[]
(test/tests/transfers/multiapp_postprocessor_to_scalar/master2.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
[]
[Variables]
[./u]
[../]
[]
[AuxVariables]
[./from_sub_app]
order = THIRD
family = SCALAR
[../]
[]
[Kernels]
[./diff]
type = CoefDiffusion
variable = u
coef = 0.01
[../]
[./td]
type = TimeDerivative
variable = u
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = left
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = right
value = 1
[../]
[]
[Postprocessors]
[./average]
type = ElementAverageValue
variable = u
[../]
[./point_value_0]
type = ScalarVariable
variable = from_sub_app
component = 0
[../]
[./point_value_1]
type = ScalarVariable
variable = from_sub_app
component = 1
[../]
[./point_value_2]
type = ScalarVariable
variable = from_sub_app
component = 2
[../]
[]
[Executioner]
type = Transient
num_steps = 5
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
nl_rel_tol = 1e-12
[]
[Outputs]
exodus = true
hide = from_sub_app
[]
[MultiApps]
[./pp_sub]
app_type = MooseTestApp
positions = '0.5 0.5 0
0.7 0.7 0
0.8 0.8 0'
execute_on = timestep_end
type = TransientMultiApp
input_files = sub2.i
[../]
[]
[Transfers]
[./pp_transfer]
type = MultiAppPostprocessorToAuxScalarTransfer
from_multi_app = pp_sub
from_postprocessor = point_value
to_aux_scalar = from_sub_app
[../]
[]
(test/tests/kernels/ode/ode_expl_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 5
ny = 5
elem_type = QUAD4
[]
[Functions]
[./f_fn]
type = ParsedFunction
value = -4
[../]
[./bc_all_fn]
type = ParsedFunction
value = x*x+y*y
[../]
[]
# NL
[Variables]
[./u]
family = LAGRANGE
order = FIRST
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./uff]
type = BodyForce
variable = u
function = f_fn
[../]
[]
[BCs]
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = bc_all_fn
[../]
[]
# Aux
[AuxVariables]
[./y]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[]
[AuxScalarKernels]
[./ode1]
type = ExplicitODE
variable = y
[../]
[]
[Postprocessors]
[./y]
type = ScalarVariable
variable = y
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
start_time = 0
dt = 0.1
num_steps = 10
[]
[Outputs]
exodus = true
[]
(test/tests/kernels/ode/coupled_ode_td_var_ic_from_mesh.i)
[Mesh]
type = FileMesh
file = 'coupled_ode_td_out.e'
[]
[Variables]
[./f]
family = SCALAR
order = FIRST
initial_from_file_var = f
initial_from_file_timestep = 'LATEST'
[../]
[./f_times_mult]
family = SCALAR
order = FIRST
initial_from_file_var = f_times_mult
initial_from_file_timestep = 'LATEST'
[../]
[]
[ScalarKernels]
[./dT]
type = CoupledODETimeDerivative
variable = f
v = f_times_mult
[../]
[./src]
type = ParsedODEKernel
variable = f
function = '-1'
[../]
[./f_times_mult_1]
type = ParsedODEKernel
variable = f_times_mult
function = 'f_times_mult'
[../]
[./f_times_mult_2]
type = ParsedODEKernel
variable = f_times_mult
function = '-f * g'
args = 'f g'
[../]
[]
[AuxVariables]
[./g]
family = SCALAR
order = FIRST
[../]
[]
[Functions]
[./function_g]
type = ParsedFunction
value = '(1 + t)'
[../]
[]
[AuxScalarKernels]
[./set_g]
type = FunctionScalarAux
function = function_g
variable = g
execute_on = 'linear initial'
[../]
[]
[Postprocessors]
[./f]
type = ScalarVariable
variable = f
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
dt = 1
num_steps = 3
nl_abs_tol = 1e-9
[]
[Outputs]
csv = true
[]
(test/tests/auxkernels/aux_nodal_scalar_kernel/aux_nodal_scalar_kernel.i)
[Mesh]
type = GeneratedMesh
dim = 1
xmin = 0
xmax = 1
nx = 10
parallel_type = replicated
[]
[Variables]
[./u]
[../]
[]
[Kernels]
[./diff]
type = Diffusion
variable = u
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = 0
value = 1
[../]
[./right]
type = DirichletBC
variable = u
boundary = 1
value = 2
[../]
[]
[AuxVariables]
[./bc_sum]
family = SCALAR
order = FIRST
[../]
[]
[AuxScalarKernels]
[./sk]
type = SumNodalValuesAux
variable = bc_sum
nodes = '0 10'
sum_var = u
[../]
[]
[Postprocessors]
[./sum]
type = ScalarVariable
variable = bc_sum
[../]
[]
[Executioner]
type = Steady
[]
[Outputs]
exodus = true
hide = bc_sum
[]
(test/tests/kernels/ode/parsedode_pp_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 2
ny = 2
elem_type = QUAD4
[]
[Variables]
[./x]
family = SCALAR
order = FIRST
initial_condition = 0
[../]
[]
[ScalarKernels]
[./dt]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ParsedODEKernel
function = '-mytime'
postprocessors = mytime
variable = x
[../]
[]
[Postprocessors]
[./computed_x]
type = ScalarVariable
variable = x
execute_on = 'initial timestep_end'
[../]
[./mytime]
type = FunctionValuePostprocessor
function = t
execute_on = 'initial timestep_begin'
[../]
[./exact_x]
type = FunctionValuePostprocessor
function = '0.5*t^2'
execute_on = 'initial timestep_end'
[../]
[./l2err_x]
type = ScalarL2Error
variable = x
function = '0.5*t^2'
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
scheme = bdf2
dt = 0.1
num_steps = 10
solve_type = 'NEWTON'
[]
[Outputs]
file_base = ode_pp_test_out
hide = 'x mytime'
csv = true
[]
(modules/thermal_hydraulics/test/tests/components/shaft_connected_turbine_1phase/turbine_startup.i)
# This test tests that the turbine can startup from rest and reach full power.
# The mass flow rate for the inlet component is ramped up over 10s. The dyno
# component and pid_ctrl controler are used to maintain the turbine's rated shaft
# speed. The turbine should supply ~1e6 W of power to the shaft by the end of the test.
omega_rated = 450
mdot = 5.0
T_in = 1000.0
p_out = 1e6
[GlobalParams]
f = 1
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
n_elems = 20
initial_T = ${T_in}
initial_p = ${p_out}
initial_vel = 0
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
[]
[Modules/FluidProperties]
[eos]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[ch_in]
type = FlowChannel1Phase
position = '-1 0 0'
orientation = '1 0 0'
length = 1
A = 0.1
D_h = 1
fp = eos
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'ch_in:in'
m_dot = 0
T = ${T_in}
[]
[turbine]
type = ShaftConnectedTurbine1Phase
inlet = 'ch_in:out'
outlet = 'ch_out:in'
position = '0 0 0'
scaling_factor_rhoEV = 1e-5
A_ref = 0.1
volume = 0.0002
inertia_coeff = '1 1 1 1'
inertia_const = 1.61397
speed_cr_I = 1e12
speed_cr_fr = 0
tau_fr_coeff = '0 0 0 0'
tau_fr_const = 0
omega_rated = ${omega_rated}
D_wheel = 0.4
head_coefficient = head
power_coefficient = power
[]
[ch_out]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
A = 0.1
D_h = 1
fp = eos
[]
[outlet]
type = Outlet1Phase
input = 'ch_out:out'
p = ${p_out}
[]
[dyno]
type = ShaftConnectedMotor
inertia = 10
torque = -450
[]
[shaft]
type = Shaft
connected_components = 'turbine dyno'
initial_speed = ${omega_rated}
[]
[]
[Functions]
[head]
type = PiecewiseLinear
x = '0 7e-3 1e-2'
y = '0 15 20'
[]
[power]
type = PiecewiseLinear
x = '0 6e-3 1e-2'
y = '0 0.05 0.18'
[]
[mfr_fn]
type = PiecewiseLinear
x = '0 10'
y = '1e-6 ${mdot}'
[]
[dts]
type = PiecewiseConstant
y = '5e-3 1e-2 5e-2 5e-1'
x = '0 0.5 1 10'
[]
[]
[ControlLogic]
[mfr_cntrl]
type = TimeFunctionComponentControl
component = inlet
parameter = m_dot
function = mfr_fn
[]
[speed_set_point]
type = GetFunctionValueControl
function = ${omega_rated}
[]
[pid_ctrl]
type = PIDControl
input = omega
set_point = speed_set_point:value
K_i = 2
K_p = 5
K_d = 5
initial_value = -450
[]
[set_torque_value]
type = SetComponentRealValueControl
component = dyno
parameter = torque
value = pid_ctrl:output
[]
[]
[Postprocessors]
[omega]
type = ScalarVariable
variable = shaft:omega
execute_on = 'initial timestep_end'
[]
[flow_coefficient]
type = ScalarVariable
variable = turbine:flow_coeff
execute_on = 'initial timestep_end'
[]
[delta_p]
type = ScalarVariable
variable = turbine:delta_p
execute_on = 'initial timestep_end'
[]
[power]
type = ScalarVariable
variable = turbine:power
execute_on = 'initial timestep_end'
[]
[]
[Preconditioning]
[SMP]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
start_time = 0
[TimeStepper]
type = FunctionDT
function = dts
[]
end_time = 20
abort_on_solve_fail = true
solve_type = 'PJFNK'
line_search = 'basic'
nl_rel_tol = 1e-6
nl_abs_tol = 1e-4
nl_max_its = 30
l_tol = 1e-4
l_max_its = 20
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
[console]
type = Console
max_rows = 1
[]
print_linear_residuals = false
[]
(test/tests/kernels/ode/ode_sys_impl_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 2
ny = 2
elem_type = QUAD4
[]
[Functions]
[./f_fn]
type = ParsedFunction
value = -4
[../]
[./bc_all_fn]
type = ParsedFunction
value = x*x+y*y
[../]
# ODEs
[./exact_x_fn]
type = ParsedFunction
value = (-1/3)*exp(-t)+(4/3)*exp(5*t)
[../]
[]
# NL
[Variables]
[./u]
family = LAGRANGE
order = FIRST
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./uff]
type = BodyForce
variable = u
function = f_fn
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ImplicitODEx
variable = x
y = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
[./ode2]
type = ImplicitODEy
variable = y
x = x
[../]
[]
[BCs]
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = bc_all_fn
[../]
[]
[Postprocessors]
active = 'exact_x l2err_x x y'
[./x]
type = ScalarVariable
variable = x
execute_on = 'initial timestep_end'
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = 'initial timestep_end'
[../]
[./exact_x]
type = FunctionValuePostprocessor
function = exact_x_fn
execute_on = 'initial timestep_end'
point = '0 0 0'
[../]
[./l2err_x]
type = ScalarL2Error
variable = x
function = exact_x_fn
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
start_time = 0
dt = 0.01
num_steps = 100
solve_type = 'PJFNK'
[]
[Outputs]
exodus = true
[]
(test/tests/auxkernels/constant_scalar_aux/constant_scalar_aux.i)
#
# Testing a solution that is second order in space and first order in time
#
[Mesh]
type = GeneratedMesh
dim = 2
xmin = -1
xmax = 1
ymin = -1
ymax = 1
nx = 10
ny = 10
elem_type = QUAD9
[]
[AuxVariables]
[./x]
family = SCALAR
order = FIRST
[../]
[]
[Variables]
[./u]
order = SECOND
family = LAGRANGE
[./InitialCondition]
type = ConstantIC
value = 0
[../]
[../]
[]
[ICs]
[./ic_x]
type = ScalarConstantIC
variable = x
value = 11
[../]
[]
[Functions]
[./forcing_fn]
type = ParsedFunction
value = ((x*x)+(y*y))-(4*t)
[../]
[./exact_fn]
type = ParsedFunction
value = t*((x*x)+(y*y))
[../]
[]
[AuxScalarKernels]
[./const_x]
type = ConstantScalarAux
variable = x
value = 11
[../]
[]
[Kernels]
[./ie]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./ffn]
type = BodyForce
variable = u
function = forcing_fn
[../]
[]
[BCs]
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = exact_fn
[../]
[]
[Postprocessors]
[./l2_err]
type = ElementL2Error
variable = u
function = exact_fn
execute_on = 'initial timestep_end'
[../]
[./x]
type = ScalarVariable
variable = x
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
solve_type = 'PJFNK'
start_time = 0.0
num_steps = 5
dt = 0.25
# [./Adaptivity]
# refine_fraction = 0.2
# coarsen_fraction = 0.3
# max_h_level = 4
# [../]
[]
[Outputs]
exodus = true
[]
(test/tests/outputs/variables/output_vars_hidden_shown_check.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 10
ny = 10
elem_type = QUAD9
[]
[Variables]
[./u]
order = FIRST
family = LAGRANGE
[../]
[./v]
order = SECOND
family = LAGRANGE
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[AuxVariables]
[./elemental]
order = CONSTANT
family = MONOMIAL
[../]
[./elemental_restricted]
order = CONSTANT
family = MONOMIAL
[../]
[./nodal]
order = FIRST
family = LAGRANGE
[../]
[./nodal_restricted]
order = FIRST
family = LAGRANGE
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = u
[../]
[./diff_u]
type = Diffusion
variable = u
[../]
[./conv_u]
type = CoupledForce
variable = u
v = v
[../]
[./diff_v]
type = Diffusion
variable = v
[../]
[]
[AuxKernels]
[./elemental]
type = ConstantAux
variable = elemental
value = 1
[../]
[./elemental_restricted]
type = ConstantAux
variable = elemental_restricted
value = 1
[../]
[./nodal]
type = ConstantAux
variable = elemental
value = 2
[../]
[./nodal_restricted]
type = ConstantAux
variable = elemental_restricted
value = 2
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ImplicitODEx
variable = x
y = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
[./ode2]
type = ImplicitODEy
variable = y
x = x
[../]
[]
[BCs]
active = 'left_u right_u left_v'
[./left_u]
type = DirichletBC
variable = u
boundary = 1
value = 1
[../]
[./right_u]
type = DirichletBC
variable = u
boundary = 3
value = 9
[../]
[./left_v]
type = DirichletBC
variable = v
boundary = 1
value = 5
[../]
[./right_v]
type = DirichletBC
variable = v
boundary = 2
value = 2
[../]
[]
[Postprocessors]
[./x]
type = ScalarVariable
variable = x
execute_on = timestep_end
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = timestep_end
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
dt = 0.01
num_steps = 10
[]
[Outputs]
file_base = out_hidden
exodus = true
hide = 'u elemental nodal x'
show = u
[]
(modules/thermal_hydraulics/test/tests/components/shaft_connected_pump_1phase/shaft_motor_pump.i)
# Pump data used in this test comes from the Semiscale Program, summarized in NUREG/CR-4945
initial_T = 393.15
area = 1e-2
dt = 1.e-2
[GlobalParams]
initial_p = 1.4E+07
initial_T = ${initial_T}
initial_vel = 10
initial_vel_x = 10
initial_vel_y = 0
initial_vel_z = 0
A = ${area}
A_ref = ${area}
f = 100
scaling_factor_1phase = '0.04 0.04 0.04e-5'
closures = simple_closures
fp = fp
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pump]
type = ShaftConnectedPump1Phase
inlet = 'pipe:out'
outlet = 'pipe:in'
position = '0 0 0'
scaling_factor_rhoEV = 1e-5
volume = 0.3
inertia_coeff = '1 1 1 1'
inertia_const = 1.61397
omega_rated = 314
speed_cr_I = 1e12
speed_cr_fr = 0
torque_rated = 47.1825
volumetric_rated = 1
head_rated = 58.52
tau_fr_coeff = '0 0 9.084 0'
tau_fr_const = 0
head = head_fcn
torque_hydraulic = torque_fcn
density_rated = 124.2046
[]
[pipe]
type = FlowChannel1Phase
position = '0.6096 0 0'
orientation = '1 0 0'
length = 10
n_elems = 20
[]
[motor]
type = ShaftConnectedMotor
inertia = 2
torque = 47
[]
[shaft]
type = Shaft
connected_components = 'motor pump'
initial_speed = 30
[]
[]
[Functions]
[head_fcn]
type = PiecewiseLinear
data_file = semiscale_head_data.csv
format = columns
[]
[torque_fcn]
type = PiecewiseLinear
data_file = semiscale_torque_data.csv
format = columns
[]
[S_energy_fcn]
type = ParsedFunction
value = '-tau_hyd * omega'
vars = 'tau_hyd omega'
vals = 'pump:hydraulic_torque shaft:omega'
[]
[energy_conservation_fcn]
type = ParsedFunction
value = '(E_change - S_energy * dt) / E_tot'
vars = 'E_change S_energy dt E_tot'
vals = 'E_change S_energy ${dt} E_tot'
[]
[]
[Postprocessors]
# mass conservation
[mass_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[mass_pump]
type = ScalarVariable
variable = pump:rhoV
execute_on = 'initial timestep_end'
[]
[mass_tot]
type = SumPostprocessor
values = 'mass_pipes mass_pump'
execute_on = 'initial timestep_end'
[]
[mass_conservation]
type = ChangeOverTimePostprocessor
postprocessor = mass_tot
change_with_respect_to_initial = true
compute_relative_change = true
execute_on = 'initial timestep_end'
[]
# energy conservation
[E_pipes]
type = ElementIntegralVariablePostprocessor
variable = rhoEA
block = 'pipe'
execute_on = 'initial timestep_end'
[]
[E_pump]
type = ScalarVariable
variable = pump:rhoEV
execute_on = 'initial timestep_end'
[]
[E_tot]
type = LinearCombinationPostprocessor
pp_coefs = '1 1'
pp_names = 'E_pipes E_pump'
execute_on = 'initial timestep_end'
[]
[S_energy]
type = FunctionValuePostprocessor
function = S_energy_fcn
execute_on = 'initial timestep_end'
[]
[E_change]
type = ChangeOverTimePostprocessor
postprocessor = E_tot
execute_on = 'initial timestep_end'
[]
# This should also execute on initial. This value is
# lagged by one timestep as a workaround to moose issue #13262.
[energy_conservation]
type = FunctionValuePostprocessor
function = energy_conservation_fcn
execute_on = 'timestep_end'
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'implicit-euler'
dt = ${dt}
num_steps = 6
solve_type = 'NEWTON'
line_search = 'basic'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
nl_rel_tol = 1e-8
nl_abs_tol = 1e-6
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
velocity_as_vector = false
[]
(test/tests/kernels/ode/coupled_ode_td_auxvar_ic_from_mesh.i)
[Mesh]
type = FileMesh
file = 'coupled_ode_td_out.e'
[]
[Variables]
[./f]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./f_times_mult]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[]
[ScalarKernels]
[./dT]
type = CoupledODETimeDerivative
variable = f
v = f_times_mult
[../]
[./src]
type = ParsedODEKernel
variable = f
function = '-1'
[../]
[./f_times_mult_1]
type = ParsedODEKernel
variable = f_times_mult
function = 'f_times_mult'
[../]
[./f_times_mult_2]
type = ParsedODEKernel
variable = f_times_mult
function = '-f * g'
args = 'f g'
[../]
[]
[AuxVariables]
[./g]
family = SCALAR
order = FIRST
initial_from_file_var = g
initial_from_file_timestep = 'LATEST'
[../]
[]
[Functions]
[./function_g]
type = ParsedFunction
value = '(1 + t)'
[../]
[]
[AuxScalarKernels]
[./set_g]
type = FunctionScalarAux
function = function_g
variable = g
execute_on = 'timestep_end'
[../]
[]
[Postprocessors]
[./f]
type = ScalarVariable
variable = f
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
dt = 1
num_steps = 3
nl_abs_tol = 1e-9
[]
[Outputs]
csv = true
[]
(test/tests/time_integrators/scalar/stiff.i)
# This is a linear model problem described in Frank et al, "Order
# results for implicit Runge-Kutta methods applied to stiff systems",
# SIAM J. Numerical Analysis, vol. 22, no. 3, 1985, pp. 515-534.
#
# Problems "PL" and "PNL" from page 527 of the paper:
# { dy1/dt = lambda*y1 + y2**p, y1(0) = -1/(lambda+p)
# { dy2/dt = -y2, y2(0) = 1
#
# The exact solution is:
# y1 = -exp(-p*t)/(lambda+p)
# y2 = exp(-t)
#
# According to the following paragraph from the reference above, the
# p=1 version of this problem should not exhibit order reductions
# regardless of stiffness, while the nonlinear version (p>=2) will
# exhibit order reductions down to the "stage order" of the method for
# lambda large, negative.
# Use Dollar Bracket Expressions (DBEs) to set the value of LAMBDA in
# a single place. You can also set this on the command line with
# e.g. LAMBDA=-4, but note that this does not seem to override the
# value set in the input file. This is a bit different from the way
# that command line values normally work...
# Note that LAMBDA == Y2_EXPONENT is not allowed!
# LAMBDA = -10
# Y2_EXPONENT = 2
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 1
ny = 1
elem_type = QUAD4
[]
[Variables]
[./y1]
family = SCALAR
order = FIRST
[../]
[./y2]
family = SCALAR
order = FIRST
[../]
[]
[ICs]
[./y1_init]
type = FunctionScalarIC
variable = y1
function = y1_exact
[../]
[./y2_init]
type = FunctionScalarIC
variable = y2
function = y2_exact
[../]
[]
[ScalarKernels]
[./y1_time]
type = ODETimeDerivative
variable = y1
[../]
[./y1_space]
type = ParsedODEKernel
variable = y1
function = '-(${LAMBDA})*y1 - y2^${Y2_EXPONENT}'
args = 'y2'
[../]
[./y2_time]
type = ODETimeDerivative
variable = y2
[../]
[./y2_space]
type = ParsedODEKernel
variable = y2
function = 'y2'
[../]
[]
[Executioner]
type = Transient
[./TimeIntegrator]
type = LStableDirk2
[../]
start_time = 0
end_time = 1
dt = 0.125
solve_type = 'PJFNK'
nl_max_its = 6
nl_abs_tol = 1.e-13
nl_rel_tol = 1.e-32 # Force nl_abs_tol to be used.
line_search = 'none'
[]
[Functions]
[./y1_exact]
type = ParsedFunction
value = '-exp(-${Y2_EXPONENT}*t)/(lambda+${Y2_EXPONENT})'
vars = 'lambda'
vals = ${LAMBDA}
[../]
[./y2_exact]
type = ParsedFunction
value = exp(-t)
[../]
[]
[Postprocessors]
[./error_y1]
type = ScalarL2Error
variable = y1
function = y1_exact
execute_on = 'initial timestep_end'
[../]
[./error_y2]
type = ScalarL2Error
variable = y2
function = y2_exact
execute_on = 'initial timestep_end'
[../]
[./max_error_y1]
# Estimate ||e_1||_{\infty}
type = TimeExtremeValue
value_type = max
postprocessor = error_y1
execute_on = 'initial timestep_end'
[../]
[./max_error_y2]
# Estimate ||e_2||_{\infty}
type = TimeExtremeValue
value_type = max
postprocessor = error_y2
execute_on = 'initial timestep_end'
[../]
[./value_y1]
type = ScalarVariable
variable = y1
execute_on = 'initial timestep_end'
[../]
[./value_y2]
type = ScalarVariable
variable = y2
execute_on = 'initial timestep_end'
[../]
[./value_y1_abs_max]
type = TimeExtremeValue
value_type = abs_max
postprocessor = value_y1
execute_on = 'initial timestep_end'
[../]
[./value_y2_abs_max]
type = TimeExtremeValue
value_type = abs_max
postprocessor = value_y2
execute_on = 'initial timestep_end'
[../]
[]
[Outputs]
csv = true
[]
(examples/ex18_scalar_kernel/ex18_parsed.i)
#
# Example 18 modified to use parsed ODE kernels.
#
# The ParsedODEKernel takes function expressions in the input file and computes
# Jacobian entries via automatic differentiation. It allows for rapid development
# of new models without the need for code recompilation.
#
# This input file should produce the exact same result as ex18.i
#
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 10
ny = 10
elem_type = QUAD4
[]
[Functions]
# ODEs
[./exact_x_fn]
type = ParsedFunction
value = (-1/3)*exp(-t)+(4/3)*exp(5*t)
[../]
[./exact_y_fn]
type = ParsedFunction
value = (2/3)*exp(-t)+(4/3)*exp(5*t)
[../]
[]
[Variables]
[./diffused]
order = FIRST
family = LAGRANGE
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = diffused
[../]
[./diff]
type = Diffusion
variable = diffused
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
#
# This parsed expression ODE Kernel behaves exactly as the ImplicitODEx kernel
# in the main example. Checkout ImplicitODEx::computeQpResidual() in the
# source code file ImplicitODEx.C to see the matching residual function.
#
# The ParsedODEKernel automaticaly generates the On- and Off-Diagonal Jacobian
# entries.
#
[./ode1]
type = ParsedODEKernel
function = '-3*x - 2*y'
variable = x
args = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
#
# This parsed expression ODE Kernel behaves exactly as the ImplicitODEy Kernel
# in the main example.
#
[./ode2]
type = ParsedODEKernel
function = '-4*x - y'
variable = y
args = x
[../]
[]
[BCs]
[./right]
type = ScalarDirichletBC
variable = diffused
boundary = 1
scalar_var = x
[../]
[./left]
type = ScalarDirichletBC
variable = diffused
boundary = 3
scalar_var = y
[../]
[]
[Postprocessors]
# to print the values of x, y into a file so we can plot it
[./x]
type = ScalarVariable
variable = x
execute_on = timestep_end
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = timestep_end
[../]
[./exact_x]
type = FunctionValuePostprocessor
function = exact_x_fn
execute_on = timestep_end
[../]
[./exact_y]
type = FunctionValuePostprocessor
function = exact_y_fn
execute_on = timestep_end
point = '0 0 0'
[../]
# Measure the error in ODE solution for 'x'.
[./l2err_x]
type = ScalarL2Error
variable = x
function = exact_x_fn
[../]
# Measure the error in ODE solution for 'y'.
[./l2err_y]
type = ScalarL2Error
variable = y
function = exact_y_fn
[../]
[]
[Executioner]
type = Transient
start_time = 0
dt = 0.01
num_steps = 10
solve_type = 'PJFNK'
[]
[Outputs]
file_base = 'ex18_out'
exodus = true
[]
(test/tests/postprocessors/scalar_variable/scalar_variable_pps.i)
[Mesh]
type = GeneratedMesh
dim = 1
nx = 10
[]
[Kernels]
[diff]
type = Diffusion
variable = u
[]
[time]
type = TimeDerivative
variable = u
[]
[]
[ScalarKernels]
[time]
type = ODETimeDerivative
variable = v
[]
[flux_sink]
type = PostprocessorSinkScalarKernel
variable = v
postprocessor = scale_flux
[]
[]
[BCs]
[right]
type = DirichletBC
value = 0
variable = u
boundary = 'right'
[]
[left]
type = ADMatchedScalarValueBC
variable = u
v = v
boundary = 'left'
[]
[]
[Variables]
[u][]
[v]
family = SCALAR
order = FIRST
initial_condition = 1
[]
[]
[Postprocessors]
[flux]
type = SideDiffusiveFluxIntegral
variable = u
diffusivity = 1
boundary = 'left'
execute_on = 'initial nonlinear linear timestep_end'
[]
[scale_flux]
type = ScalePostprocessor
scaling_factor = -1
value = flux
execute_on = 'initial nonlinear linear timestep_end'
[]
[reporter]
type = ScalarVariable
variable = v
execute_on = 'initial timestep_end'
[]
[]
[Executioner]
type = Transient
dt = .1
end_time = 1
solve_type = PJFNK
nl_rel_tol = 1e-12
[]
[Outputs]
csv = true
[]
(test/tests/kernels/ode/parsedode_sys_impl_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
xmin = 0
xmax = 1
ymin = 0
ymax = 1
nx = 2
ny = 2
elem_type = QUAD4
[]
[Functions]
[./f_fn]
type = ParsedFunction
value = -4
[../]
[./bc_all_fn]
type = ParsedFunction
value = x*x+y*y
[../]
# ODEs
[./exact_x_fn]
type = ParsedFunction
value = (-1/3)*exp(-t)+(4/3)*exp(5*t)
[../]
[]
# NL
[Variables]
[./u]
family = LAGRANGE
order = FIRST
[../]
# ODE variables
[./x]
family = SCALAR
order = FIRST
initial_condition = 1
[../]
[./y]
family = SCALAR
order = FIRST
initial_condition = 2
[../]
[]
[Kernels]
[./td]
type = TimeDerivative
variable = u
[../]
[./diff]
type = Diffusion
variable = u
[../]
[./uff]
type = BodyForce
variable = u
function = f_fn
[../]
[]
[ScalarKernels]
[./td1]
type = ODETimeDerivative
variable = x
[../]
[./ode1]
type = ParsedODEKernel
function = '-3*x - 2*y'
variable = x
args = y
[../]
[./td2]
type = ODETimeDerivative
variable = y
[../]
[./ode2]
type = ParsedODEKernel
function = '-4*x - y'
variable = y
args = x
[../]
[]
[BCs]
[./all]
type = FunctionDirichletBC
variable = u
boundary = '0 1 2 3'
function = bc_all_fn
[../]
[]
[Postprocessors]
active = 'exact_x l2err_x x y'
[./x]
type = ScalarVariable
variable = x
execute_on = 'initial timestep_end'
[../]
[./y]
type = ScalarVariable
variable = y
execute_on = 'initial timestep_end'
[../]
[./exact_x]
type = FunctionValuePostprocessor
function = exact_x_fn
execute_on = 'initial timestep_end'
point = '0 0 0'
[../]
[./l2err_x]
type = ScalarL2Error
variable = x
function = exact_x_fn
execute_on = 'initial timestep_end'
[../]
[]
[Executioner]
type = Transient
start_time = 0
dt = 0.01
num_steps = 100
solve_type = 'PJFNK'
[]
[Outputs]
file_base = ode_sys_impl_test_out
exodus = true
[]
(modules/thermal_hydraulics/test/tests/problems/brayton_cycle/open_brayton_cycle.i)
# This input file is used to demonstrate a simple open-air Brayton cycle using
# a compressor, turbine, shaft, motor, and generator.
# The flow length is divided into 5 segments as illustrated below, where
# - "(I)" denotes the inlet
# - "(C)" denotes the compressor
# - "(T)" denotes the turbine
# - "(O)" denotes the outlet
# - "*" denotes a fictitious junction
#
# Heated section
# (I)-----(C)-----*--------------*-----(T)-----(O)
# 1 2 3 4 5
#
# Initially the fluid is at rest at ambient conditions, the shaft speed is zero,
# and no heat transfer occurs with the system.
# The transient is controlled as follows:
# * 0 - 100 s: motor ramps up torque linearly from zero
# * 100 - 200 s: motor ramps down torque linearly to zero, HTC ramps up linearly from zero.
# * 200 - 300 s: (no changes; should approach steady condition)
I_motor = 1.0
motor_torque_max = 400.0
I_generator = 1.0
generator_torque_per_shaft_speed = -0.00025
motor_ramp_up_duration = 100.0
motor_ramp_down_duration = 100.0
post_motor_time = 100.0
t1 = ${motor_ramp_up_duration}
t2 = ${fparse t1 + motor_ramp_down_duration}
t3 = ${fparse t2 + post_motor_time}
D1 = 0.15
D2 = ${D1}
D3 = ${D1}
D4 = ${D1}
D5 = ${D1}
A1 = ${fparse 0.25 * pi * D1^2}
A2 = ${fparse 0.25 * pi * D2^2}
A3 = ${fparse 0.25 * pi * D3^2}
A4 = ${fparse 0.25 * pi * D4^2}
A5 = ${fparse 0.25 * pi * D5^2}
L1 = 10.0
L2 = ${L1}
L3 = ${L1}
L4 = ${L1}
L5 = ${L1}
x1 = 0.0
x2 = ${fparse x1 + L1}
x3 = ${fparse x2 + L2}
x4 = ${fparse x3 + L3}
x5 = ${fparse x4 + L4}
x2_minus = ${fparse x2 - 0.001}
x2_plus = ${fparse x2 + 0.001}
x5_minus = ${fparse x5 - 0.001}
x5_plus = ${fparse x5 + 0.001}
n_elems1 = 10
n_elems2 = ${n_elems1}
n_elems3 = ${n_elems1}
n_elems4 = ${n_elems1}
n_elems5 = ${n_elems1}
A_ref_comp = ${fparse 0.5 * (A1 + A2)}
V_comp = ${fparse A_ref_comp * 1.0}
I_comp = 1.0
A_ref_turb = ${fparse 0.5 * (A4 + A5)}
V_turb = ${fparse A_ref_turb * 1.0}
I_turb = 1.0
c0_rated_comp = 351.6925137
rho0_rated_comp = 1.146881112
rated_mfr = 0.25
speed_rated_rpm = 96000
speed_rated = ${fparse speed_rated_rpm * 2 * pi / 60.0}
speed_initial = 0
eff_comp = 0.79
eff_turb = 0.843
T_hot = 1000
T_ambient = 300
p_ambient = 1e5
[GlobalParams]
orientation = '1 0 0'
gravity_vector = '0 0 0'
initial_p = ${p_ambient}
initial_T = ${T_ambient}
initial_vel = 0
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
fp = fp_air
closures = closures
f = 0
scaling_factor_1phase = '1 1 1e-5'
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhovV = 1
scaling_factor_rhowV = 1
scaling_factor_rhoEV = 1e-5
rdg_slope_reconstruction = none
[]
[Functions]
[motor_torque_fn]
type = PiecewiseLinear
x = '0 ${t1} ${t2}'
y = '0 ${motor_torque_max} 0'
[]
[motor_power_fn]
type = ParsedFunction
value = 'torque * speed'
vars = 'torque speed'
vals = 'motor_torque shaft:omega'
[]
[generator_torque_fn]
type = ParsedFunction
value = 'slope * t'
vars = 'slope'
vals = '${generator_torque_per_shaft_speed}'
[]
[generator_power_fn]
type = ParsedFunction
value = 'torque * speed'
vars = 'torque speed'
vals = 'generator_torque shaft:omega'
[]
[htc_wall_fn]
type = PiecewiseLinear
x = '0 ${t1} ${t2}'
y = '0 0 1e3'
[]
[]
[Modules/FluidProperties]
[fp_air]
type = IdealGasFluidProperties
emit_on_nan = none
[]
[]
[Closures]
[closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[shaft]
type = Shaft
connected_components = 'motor compressor turbine generator'
initial_speed = ${speed_initial}
[]
[motor]
type = ShaftConnectedMotor
inertia = ${I_motor}
torque = 0 # controlled
[]
[generator]
type = ShaftConnectedMotor
inertia = ${I_generator}
torque = generator_torque_fn
[]
[inlet]
type = InletStagnationPressureTemperature1Phase
input = 'pipe1:in'
p0 = ${p_ambient}
T0 = ${T_ambient}
[]
[pipe1]
type = FlowChannel1Phase
position = '${x1} 0 0'
length = ${L1}
n_elems = ${n_elems1}
A = ${A1}
[]
[compressor]
type = ShaftConnectedCompressor1Phase
position = '${x2} 0 0'
inlet = 'pipe1:out'
outlet = 'pipe2:in'
A_ref = ${A_ref_comp}
volume = ${V_comp}
omega_rated = ${speed_rated}
mdot_rated = ${rated_mfr}
c0_rated = ${c0_rated_comp}
rho0_rated = ${rho0_rated_comp}
speeds = '0.5208 0.6250 0.7292 0.8333 0.9375'
Rp_functions = 'rp_comp1 rp_comp2 rp_comp3 rp_comp4 rp_comp5'
eff_functions = 'eff_comp1 eff_comp2 eff_comp3 eff_comp4 eff_comp5'
min_pressure_ratio = 1.0
speed_cr_I = 0
inertia_const = ${I_comp}
inertia_coeff = '${I_comp} 0 0 0'
# assume no shaft friction
speed_cr_fr = 0
tau_fr_const = 0
tau_fr_coeff = '0 0 0 0'
[]
[pipe2]
type = FlowChannel1Phase
position = '${x2} 0 0'
length = ${L2}
n_elems = ${n_elems2}
A = ${A2}
[]
[junction2_3]
type = JunctionOneToOne1Phase
connections = 'pipe2:out pipe3:in'
[]
[pipe3]
type = FlowChannel1Phase
position = '${x3} 0 0'
length = ${L3}
n_elems = ${n_elems3}
A = ${A3}
[]
[junction3_4]
type = JunctionOneToOne1Phase
connections = 'pipe3:out pipe4:in'
[]
[pipe4]
type = FlowChannel1Phase
position = '${x4} 0 0'
length = ${L4}
n_elems = ${n_elems4}
A = ${A4}
[]
[turbine]
type = ShaftConnectedCompressor1Phase
position = '${x5} 0 0'
inlet = 'pipe4:out'
outlet = 'pipe5:in'
A_ref = ${A_ref_turb}
volume = ${V_turb}
treat_as_turbine = true
omega_rated = ${speed_rated}
mdot_rated = ${rated_mfr}
c0_rated = ${c0_rated_comp}
rho0_rated = ${rho0_rated_comp}
speeds = '0 0.5208 0.6250 0.7292 0.8333 0.9375'
Rp_functions = 'rp_turb0 rp_turb1 rp_turb2 rp_turb3 rp_turb4 rp_turb5'
eff_functions = 'eff_turb1 eff_turb1 eff_turb2 eff_turb3 eff_turb4 eff_turb5'
min_pressure_ratio = 1.0
speed_cr_I = 0
inertia_const = ${I_turb}
inertia_coeff = '${I_turb} 0 0 0'
# assume no shaft friction
speed_cr_fr = 0
tau_fr_const = 0
tau_fr_coeff = '0 0 0 0'
[]
[pipe5]
type = FlowChannel1Phase
position = '${x5} 0 0'
length = ${L5}
n_elems = ${n_elems5}
A = ${A5}
[]
[outlet]
type = Outlet1Phase
input = 'pipe5:out'
p = ${p_ambient}
[]
[heating]
type = HeatTransferFromSpecifiedTemperature1Phase
flow_channel = pipe3
T_wall = ${T_hot}
Hw = htc_wall_fn
[]
[]
[ControlLogic]
[motor_ctrl]
type = TimeFunctionComponentControl
component = motor
parameter = torque
function = motor_torque_fn
[]
[]
[Postprocessors]
[heating_rate]
type = ADHeatRateConvection1Phase
block = 'pipe3'
T = T
T_wall = T_wall
Hw = Hw
P_hf = P_hf
execute_on = 'INITIAL TIMESTEP_END'
[]
[motor_torque]
type = RealComponentParameterValuePostprocessor
component = motor
parameter = torque
execute_on = 'INITIAL TIMESTEP_END'
[]
[motor_power]
type = FunctionValuePostprocessor
function = motor_power_fn
execute_on = 'INITIAL TIMESTEP_END'
[]
[generator_torque]
type = ShaftConnectedComponentPostprocessor
quantity = torque
shaft_connected_component_uo = generator:shaftconnected_uo
execute_on = 'INITIAL TIMESTEP_END'
[]
[generator_power]
type = FunctionValuePostprocessor
function = generator_power_fn
execute_on = 'INITIAL TIMESTEP_END'
[]
[shaft_speed]
type = ScalarVariable
variable = 'shaft:omega'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_in_comp]
type = PointValue
variable = p
point = '${x2_minus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_out_comp]
type = PointValue
variable = p
point = '${x2_plus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_ratio_comp]
type = ParsedPostprocessor
pp_names = 'p_in_comp p_out_comp'
function = 'p_out_comp / p_in_comp'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_in_turb]
type = PointValue
variable = p
point = '${x5_minus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_out_turb]
type = PointValue
variable = p
point = '${x5_plus} 0 0'
execute_on = 'INITIAL TIMESTEP_END'
[]
[p_ratio_turb]
type = ParsedPostprocessor
pp_names = 'p_in_turb p_out_turb'
function = 'p_in_turb / p_out_turb'
execute_on = 'INITIAL TIMESTEP_END'
[]
[mfr_comp]
type = ADFlowJunctionFlux1Phase
boundary = pipe1:out
connection_index = 0
equation = mass
junction = compressor
[]
[mfr_turb]
type = ADFlowJunctionFlux1Phase
boundary = pipe4:out
connection_index = 0
equation = mass
junction = turbine
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
end_time = ${t3}
[TimeStepper]
type = IterationAdaptiveDT
dt = 0.01
optimal_iterations = 5
iteration_window = 1
growth_factor = 1.1
cutback_factor = 0.9
[]
dtmin = 1e-5
steady_state_detection = true
steady_state_start_time = ${t2}
solve_type = NEWTON
nl_rel_tol = 1e-8
nl_abs_tol = 1e-8
nl_max_its = 15
l_tol = 1e-4
l_max_its = 10
[]
[Outputs]
exodus = true
[csv]
type = CSV
file_base = 'open_brayton_cycle'
execute_vector_postprocessors_on = 'INITIAL'
[]
[console]
type = Console
show = 'shaft_speed p_ratio_comp p_ratio_turb compressor:pressure_ratio turbine:pressure_ratio'
[]
[]
[Functions]
# compressor pressure ratio
[rp_comp1]
type = PiecewiseLinear
data_file = 'rp_comp1.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp2]
type = PiecewiseLinear
data_file = 'rp_comp2.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp3]
type = PiecewiseLinear
data_file = 'rp_comp3.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp4]
type = PiecewiseLinear
data_file = 'rp_comp4.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_comp5]
type = PiecewiseLinear
data_file = 'rp_comp5.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
# compressor efficiency
[eff_comp1]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp2]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp3]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp4]
type = ConstantFunction
value = ${eff_comp}
[]
[eff_comp5]
type = ConstantFunction
value = ${eff_comp}
[]
# turbine pressure ratio
[rp_turb0]
type = ConstantFunction
value = 1
[]
[rp_turb1]
type = PiecewiseLinear
data_file = 'rp_turb1.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb2]
type = PiecewiseLinear
data_file = 'rp_turb2.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb3]
type = PiecewiseLinear
data_file = 'rp_turb3.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb4]
type = PiecewiseLinear
data_file = 'rp_turb4.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
[rp_turb5]
type = PiecewiseLinear
data_file = 'rp_turb5.csv'
x_index_in_file = 0
y_index_in_file = 1
format = columns
extrap = true
[]
# turbine efficiency
[eff_turb1]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb2]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb3]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb4]
type = ConstantFunction
value = ${eff_turb}
[]
[eff_turb5]
type = ConstantFunction
value = ${eff_turb}
[]
[]
(test/tests/transfers/multiapp_postprocessor_to_scalar/sub.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 10
ny = 10
[]
[Variables]
[./u]
[../]
[]
[AuxVariables]
[./from_master_app]
order = FIRST
family = SCALAR
[../]
[]
[Kernels]
[./diff]
type = CoefDiffusion
variable = u
coef = 0.01
[../]
[./td]
type = TimeDerivative
variable = u
[../]
[]
[BCs]
[./left]
type = DirichletBC
variable = u
boundary = left
value = 0
[../]
[./right]
type = DirichletBC
variable = u
boundary = right
value = 2
[../]
[]
[Postprocessors]
[./from_master]
type = ScalarVariable
variable = from_master_app
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
num_steps = 1
dt = 1
petsc_options_iname = '-pc_type -pc_hypre_type'
petsc_options_value = 'hypre boomeramg'
nl_rel_tol = 1e-12
[]
[Outputs]
exodus = true
hide = from_master_app
[]