- TPrescribed temperature [K]
C++ Type:double
Controllable:Yes
Description:Prescribed temperature [K]
- inputName of the input
C++ Type:BoundaryName
Controllable:No
Description:Name of the input
- m_dotPrescribed mass flow rate [kg/s]
C++ Type:double
Controllable:Yes
Description:Prescribed mass flow rate [kg/s]
InletMassFlowRateTemperature1Phase
This is a single-phase 1-D flow boundary component in which the mass flow rate and temperature are specified. This boundary is typically used when fluid is expected to flow from an infinitely large tank where the pressure and temperature are known.
Usage
This component must be connected to a FlowChannel1Phase. See how to connect a flow boundary component.
The user specifies the following parameters:
The formulation of this boundary condition assumes flow entering the flow channel at this boundary.
Reversible flow: If exit conditions are encountered, then the boundary condition is automatically changed to an outlet formulation. This behavior can be disabled by setting the "reversible" parameter to false.
Input Parameters
- reversibleTrueTrue for reversible, false for pure inlet
Default:True
C++ Type:bool
Controllable:No
Description:True for reversible, false for pure inlet
Optional Parameters
- 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:No
Description:Set the enabled status of the MooseObject.
Advanced Parameters
Input Files
- (modules/thermal_hydraulics/test/tests/postprocessors/specific_impulse_1phase/Isp_1ph.i)
- (modules/thermal_hydraulics/test/tests/base/simulation/err.no_smp.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure/test.i)
- (modules/thermal_hydraulics/test/tests/components/pump_1phase/clg.head.i)
- (modules/thermal_hydraulics/test/tests/components/pump_1phase/pump_pressure_check.i)
- (modules/thermal_hydraulics/test/tests/components/gate_valve_1phase/gate_valve_1phase.i)
- (modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/phy.massflowrate_3eqn.i)
- (modules/thermal_hydraulics/test/tests/components/form_loss_from_external_app_1phase/phy.form_loss_1phase.slave.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/volume_junction/test.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/flow_channel/test.i)
- (modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/clg.ctrl_m_dot_3eqn_rdg.i)
- (modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/phy.conservation.i)
- (modules/thermal_hydraulics/tutorials/single_phase_flow/01_flow_channel.i)
- (modules/thermal_hydraulics/test/tests/components/heat_transfer_from_specified_temperature_1phase/err.no_phf.i)
- (modules/thermal_hydraulics/test/tests/components/deprecated/junction_one_to_one.i)
- (modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/phy.test.i)
- (modules/thermal_hydraulics/test/tests/postprocessors/flow_junction_flux_1phase/flow_junction_flux_1phase.i)
- (modules/thermal_hydraulics/test/tests/components/flow_connection/err.connecting_to_non_existent_component.i)
- (modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/phy.reversed_flow.i)
- (modules/thermal_hydraulics/tutorials/single_phase_flow/02_core.i)
- (modules/thermal_hydraulics/tutorials/single_phase_flow/06_custom_closures.i)
- (modules/thermal_hydraulics/test/tests/components/heat_transfer_from_external_app_1phase/phy.T_wall_transfer_3eqn.slave.i)
- (modules/thermal_hydraulics/tutorials/single_phase_flow/05_secondary_side.i)
- (modules/thermal_hydraulics/test/tests/actions/coupled_heat_transfer_action/sub.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure_3d/test.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/flow_channel/steady_state.i)
- (modules/thermal_hydraulics/test/tests/misc/surrogate_power_profile/surrogate_power_profile.i)
- (modules/thermal_hydraulics/test/tests/components/heat_source_volumetric_1phase/err.base.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure/steady_state.i)
- (modules/thermal_hydraulics/test/tests/components/junction_parallel_channels_1phase/phy.unequal_area.i)
- (modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/jacobian.i)
- (modules/thermal_hydraulics/test/tests/components/shaft_connected_turbine_1phase/turbine_startup.i)
- (modules/thermal_hydraulics/test/tests/components/deprecated/gate_valve.i)
- (modules/thermal_hydraulics/test/tests/postprocessors/flow_boundary_flux_1phase/test.i)
- (modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/clg.ctrl_T_3eqn_rdg.i)
- (modules/thermal_hydraulics/tutorials/single_phase_flow/03_upper_loop.i)
- (modules/thermal_hydraulics/test/tests/output/vector_velocity/test.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure_3d/steady_state.i)
- (modules/thermal_hydraulics/test/tests/misc/coupling_mD_flow/thm_non_overlapping.i)
- (modules/thermal_hydraulics/test/tests/misc/initial_from_file/volume_junction/steady_state.i)
- (modules/thermal_hydraulics/test/tests/components/heat_transfer_from_external_app_1phase/phy.T_wall_transfer_elem_3eqn.slave.i)
Formulation
This boundary condition uses a ghost cell formulation, where the ghost cell solution is computed from the following quantities:
, the provided exterior mass flow rate,
, the provided exterior temperature, and
, the interior pressure.
If the boundary is specified to be reversible ("reversible" set to true) and the flow is exiting, the ghost cell is instead computed with the following quantities:
, the provided exterior mass flow rate,
, the interior density, and
, the interior specific total energy.
m_dot
C++ Type:double
Controllable:Yes
Description:Prescribed mass flow rate [kg/s]
T
C++ Type:double
Controllable:Yes
Description:Prescribed temperature [K]
reversible
Default:True
C++ Type:bool
Controllable:No
Description:True for reversible, false for pure inlet
(modules/thermal_hydraulics/test/tests/postprocessors/specific_impulse_1phase/Isp_1ph.i)
[GlobalParams]
gravity_vector = '0 0 0'
initial_p = 6e6
initial_T = 600
initial_vel = 0
scaling_factor_1phase = '1 1 1e-5'
closures = simple_closures
[]
[Modules/FluidProperties]
[eos]
type = IdealGasFluidProperties
gamma = 1.3066
molar_mass = 2.016e-3
k = 0.437
mu = 3e-5
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
fp = eos
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 0.1
f = 0.
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
m_dot = 0.1
T = 800
input = 'pipe1:in'
[]
[outlet]
type = Outlet1Phase
input = 'pipe1:out'
p = 6e6
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
[TimeStepper]
type = IterationAdaptiveDT
dt = 0.01
growth_factor = 1.4
optimal_iterations = 6
iteration_window = 2
[]
start_time = 0.0
end_time = 100
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-6
nl_abs_tol = 1e-6
nl_max_its = 10
l_tol = 1e-3
l_max_its = 10
[]
[Postprocessors]
# hand calcs show that Isp should start at 274.3 at 600 K
# and rise to 316.7 at 800 K.
[Isp]
type = ADSpecificImpulse1Phase
p_exit = 1e6
fp = eos
boundary = outlet
[]
[Isp_inst]
type = ADSpecificImpulse1Phase
p_exit = 1e6
fp = eos
cumulative = false
boundary = outlet
[]
[outletT]
type = SideAverageValue
variable = T
boundary = pipe1:out
[]
[]
[Outputs]
[out]
type = CSV
show = 'Isp Isp_inst'
execute_on = 'INITIAL FINAL'
[]
[]
(modules/thermal_hydraulics/test/tests/base/simulation/err.no_smp.i)
[GlobalParams]
gravity_vector = '0 0 9.81'
initial_p = 1e5
initial_T = 300
initial_vel = 0
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
fp = water
closures = simple_closures
f = 0
[]
[Modules/FluidProperties]
[water]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 1
T = 300
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = '1'
A = 1
D_h = 1
n_elems = 2
[]
[jct1]
type = VolumeJunction1Phase
position = '1 0 0'
volume = 1e-3
connections = 'pipe1:out pipe2:in'
[]
[pipe2]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '1 0 0'
length = '1'
A = 1
D_h = 1
n_elems = 2
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 101325
[]
[]
[Executioner]
type = Transient
dt = 0.01
num_steps = 2
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure/test.i)
# Test that the initial conditions read from the exodus file are correct
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
scaling_factor_temperature = 1e-2
closures = simple_closures
initial_from_file = 'steady_state_out.e'
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[mat1]
type = SolidMaterialProperties
k = 16
cp = 356.
rho = 6.551400E+03
[]
[]
[Functions]
[Ts_bc]
type = ParsedFunction
value = '2*sin(x*pi)+507'
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
names = 'wall'
n_part_elems = 1
materials = 'mat1'
inner_radius = 0.01
widths = 0.1
[]
[ht]
type = HeatTransferFromHeatStructure1Phase
flow_channel = pipe
hs = hs
hs_side = INNER
Hw = 10000
[]
[temp_outside]
type = HSBoundarySpecifiedTemperature
hs = hs
boundary = hs:outer
T = Ts_bc
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 6e6
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 1
num_steps = 1
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
[]
[Outputs]
exodus = true
execute_on = 'initial'
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/components/pump_1phase/clg.head.i)
[GlobalParams]
initial_T = 393.15
initial_vel = 0.0372
f = 0
fp = fp
scaling_factor_1phase = '1e-2 1e-2 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]
[pump_head_fn]
type = PiecewiseLinear
x = '0 0.5'
y = '0 1 '
[]
[]
[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
n_elems = 10
A = 0.567
initial_p = 1.318964e+07
[]
[pump]
type = Pump1Phase
connections = 'pipe1:out pipe2:in'
position = '1.02 0 0'
head = 0
volume = 0.567
A_ref = 0.567
initial_p = 1.318964e+07
initial_vel_x = 0.0372
initial_vel_y = 0
initial_vel_z = 0
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhoEV = 1e-5
[]
[pipe2]
type = FlowChannel1Phase
position = '1.04 0 0'
orientation = '1 0 0'
length = 0.96
n_elems = 10
A = 0.567
initial_p = 1.4072e+07
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1.4072e+07
[]
[]
[ControlLogic]
[pump_head_ctrl]
type = TimeFunctionComponentControl
component = pump
parameter = head
function = pump_head_fn
[]
[]
[Postprocessors]
[pump_head]
type = RealComponentParameterValuePostprocessor
component = pump
parameter = head
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 0.1
num_steps = 10
abort_on_solve_fail = true
solve_type = 'PJFNK'
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]
[out]
type = CSV
show = 'pump_head'
[]
print_linear_residuals = false
[]
(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'
[]
[]
(modules/thermal_hydraulics/test/tests/components/gate_valve_1phase/gate_valve_1phase.i)
# This input file is used to test the gate valve component.
# This problem consists of a T junction of 3 pipes. The inlet pipe is one of the
# 2 pipes of the "top" of the T. The other 2 pipes each have a gate valve.
# Initially, one of the 2 outlet pipes has an open valve and the other has a
# closed valve. Later in the transient, the valves gradually open/close to switch
# the outlet flow direction.
p = 1.0e5
T = 300.0
rho = 1.161430436 # @ 1e5 Pa, 300 K
D = 0.1
A = ${fparse pi * D^2 / 4.0}
V_junction = ${fparse pi * D^3 / 4.0}
vel_in = 2.0
m_dot = ${fparse rho * vel_in * A}
t_begin = 0.3
delta_t_open = 0.1
[GlobalParams]
gravity_vector = '0 0 0'
closures = simple_closures
fp = fp
f = 0.0
initial_T = ${T}
initial_p = ${p}
initial_vel = 0
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
gamma = 1.4
molar_mass = 0.02897
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Functions]
[pipe3_open_fn]
type = TimeRampFunction
initial_value = 1
final_value = 0
initial_time = ${t_begin}
ramp_duration = ${delta_t_open}
[]
[pipe2_open_fn]
type = ParsedFunction
value = '1 - pipe3_phi'
vars = 'pipe3_phi'
vals = 'pipe3_open_fn'
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = ${m_dot}
T = ${T}
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1.0
n_elems = 50
A = ${A}
[]
[volume_junction]
type = VolumeJunction1Phase
position = '1 0 0'
connections = 'pipe1:out pipe2A:in pipe3A:in'
volume = ${V_junction}
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
[]
[pipe2A]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '0 1 0'
length = 0.5
n_elems = 25
A = ${A}
[]
[pipe2_valve]
type = GateValve1Phase
connections = 'pipe2A:out pipe2B:in'
open_area_fraction = 0 # (controlled via 'pipe2_valve_control')
[]
[pipe2B]
type = FlowChannel1Phase
position = '1 0.5 0'
orientation = '0 1 0'
length = 0.5
n_elems = 25
A = ${A}
[]
[pipe2_outlet]
type = Outlet1Phase
input = 'pipe2B:out'
p = ${p}
[]
[pipe3A]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '1 0 0'
length = 0.5
n_elems = 25
A = ${A}
[]
[pipe3_valve]
type = GateValve1Phase
connections = 'pipe3A:out pipe3B:in'
open_area_fraction = 0 # (controlled via 'pipe3_valve_control')
[]
[pipe3B]
type = FlowChannel1Phase
position = '1.5 0 0'
orientation = '1 0 0'
length = 0.5
n_elems = 25
A = ${A}
[]
[pipe3_outlet]
type = Outlet1Phase
input = 'pipe3B:out'
p = ${p}
[]
[]
[ControlLogic]
[pipe2_valve_control]
type = TimeFunctionComponentControl
component = pipe2_valve
parameter = open_area_fraction
function = pipe2_open_fn
[]
[pipe3_valve_control]
type = TimeFunctionComponentControl
component = pipe3_valve
parameter = open_area_fraction
function = pipe3_open_fn
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = PJFNK
nl_rel_tol = 1e-8
nl_abs_tol = 1e-8
nl_max_its = 20
l_tol = 1e-4
start_time = 0.0
end_time = 1.0
dt = 0.01
abort_on_solve_fail = true
[]
[Outputs]
exodus = true
show = 'p T vel'
velocity_as_vector = false
print_linear_residuals = false
[console]
type = Console
max_rows = 1
[]
[]
(modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/phy.massflowrate_3eqn.i)
[GlobalParams]
gravity_vector = '0 0 0'
initial_T = 444.447
initial_p = 7e6
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
A = 1.0000000000e-04
D_h = 1.1283791671e-02
f = 0.1
length = 1
n_elems = 20
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.18
T = 444.447
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 7e6
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
dt = 0.1
start_time = 0.0
num_steps = 30
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 20
l_tol = 1e-3
l_max_its = 100
abort_on_solve_fail = true
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
file_base = 'phy.massflowrate_3eqn'
[exodus]
type = Exodus
show = 'rhouA T p'
[]
[]
(modules/thermal_hydraulics/test/tests/components/form_loss_from_external_app_1phase/phy.form_loss_1phase.slave.i)
[GlobalParams]
initial_p = 1e5
initial_vel = 0.5
initial_T = 300.0
gravity_vector = '0 0 0'
scaling_factor_1phase = '1 1e-2 1e-4'
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
position = '0 0 0'
orientation = '1 0 0'
length = 2
A = 1
n_elems = 10
f = 0
[]
[form_loss]
type = FormLossFromExternalApp1Phase
flow_channel = pipe
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 680
T = 300
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 1e5
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
dt = 0.1
abort_on_solve_fail = true
timestep_tolerance = 5e-14
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-8
nl_abs_tol = 5e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 20
start_time = 0.0
end_time = 4.0
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
exodus = true
show = 'K_prime p'
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/volume_junction/test.i)
# Test that the initial conditions read from the exodus file are correct
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
closures = simple_closures
initial_from_file = 'steady_state_out.e'
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[junction]
type = VolumeJunction1Phase
connections = 'pipe1:out pipe2:in'
volume = 1
position = '1 0 0'
scaling_factor_rhoV = 1
scaling_factor_rhouV = 1
scaling_factor_rhovV = 1
scaling_factor_rhowV = 1
scaling_factor_rhoEV = 1e-4
[]
[pipe2]
type = FlowChannel1Phase
fp = fp
# geometry
position = '1 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 6e6
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 1
num_steps = 1
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
[]
[Outputs]
exodus = true
execute_on = 'initial'
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/flow_channel/test.i)
# Test that the initial conditions read from the exodus file are correct
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
scaling_factor_temperature = 1e-2
closures = simple_closures
initial_from_file = 'steady_state_out.e'
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 6e6
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 1
num_steps = 1
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
[]
[Outputs]
exodus = true
execute_on = 'initial'
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/clg.ctrl_m_dot_3eqn_rdg.i)
[GlobalParams]
gravity_vector = '0 0 0'
initial_p = 1e5
initial_T = 300
initial_vel = 0.0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 50
A = 1.0000000000e-04
D_h = 1.1283791671e-02
f = 0.0
fp = fp
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0
T = 300
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 1e5
[]
[]
[Functions]
[inlet_m_dot_fn]
type = PiecewiseLinear
x = '0 1'
y = '0 0.5'
[]
[]
[ControlLogic]
[set_inlet_value]
type = TimeFunctionComponentControl
component = inlet
parameter = m_dot
function = inlet_m_dot_fn
[]
[]
[Postprocessors]
[inlet_m_dot]
type = RealComponentParameterValuePostprocessor
component = inlet
parameter = m_dot
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0.0
dt = 0.25
num_steps = 5
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-10
nl_abs_tol = 1e-6
nl_max_its = 30
l_tol = 1e-3
l_max_its = 100
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
csv = 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'
[]
[]
(modules/thermal_hydraulics/tutorials/single_phase_flow/01_flow_channel.i)
T_in = 300. # K
m_dot_in = 1e-4 # kg/s
press = 1e5 # Pa
[GlobalParams]
initial_p = ${press}
initial_vel = 0
initial_T = ${T_in}
rdg_slope_reconstruction = full
closures = simple_closures
fp = he
[]
[Modules/FluidProperties]
[he]
type = IdealGasFluidProperties
molar_mass = 4e-3
gamma = 1.67
k = 0.2556
mu = 3.22639e-5
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'core_chan:in'
m_dot = ${m_dot_in}
T = ${T_in}
[]
[core_chan]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 1'
length = 1
n_elems = 10
A = 7.2548e-3
D_h = 7.0636e-2
f = 1.6
[]
[outlet]
type = Outlet1Phase
input = 'core_chan:out'
p = ${press}
[]
[]
[Executioner]
type = Transient
start_time = 0
end_time = 2
dt = 0.1
line_search = basic
solve_type = NEWTON
nl_rel_tol = 1e-5
nl_abs_tol = 1e-5
nl_max_its = 5
[]
[Outputs]
exodus = true
[]
(modules/thermal_hydraulics/test/tests/components/heat_transfer_from_specified_temperature_1phase/err.no_phf.i)
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[mat]
type = SolidMaterialProperties
k = 1
cp = 2
rho = 3
[]
[]
[Components]
[fch1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 1 0'
length = 1
n_elems = 2
A = 1
closures = simple_closures
fp = fp
f = 0.01
initial_p = 1e5
initial_T = 300
initial_vel = 0
[]
[hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 2
names = 'blk'
widths = '0.1'
n_part_elems = '1'
materials = 'mat'
initial_T = 300
[]
[hx]
type = HeatTransferFromHeatStructure1Phase
hs = hs
hs_side = START
flow_channel = fch1
Hw = 0
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'fch1:in'
m_dot = 1
T = 300
[]
[outlet]
type = Outlet1Phase
input = 'fch1:out'
p = 1e5
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 0.1
num_steps = 1
[]
(modules/thermal_hydraulics/test/tests/components/deprecated/junction_one_to_one.i)
[GlobalParams]
gravity_vector = '0 0 0'
closures = simple_closures
fp = fp
f = 0.0
initial_T = 300
initial_p = 1e5
initial_vel = 0
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
gamma = 1.4
molar_mass = 0.02897
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 1
T = 300
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 0'
length = 0.5
n_elems = 2
A = 0.1
[]
[valve]
type = JunctionOneToOne
connections = 'pipe1:out pipe2:in'
[]
[pipe2]
type = FlowChannel1Phase
position = '0.5 0 0'
orientation = '1 0 0'
length = 0.5
n_elems = 2
A = 0.1
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e5
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = NEWTON
nl_rel_tol = 1e-8
nl_abs_tol = 1e-8
nl_max_its = 20
l_tol = 1e-4
start_time = 0.0
end_time = 1.0
dt = 0.01
abort_on_solve_fail = true
[]
(modules/thermal_hydraulics/test/tests/components/simple_turbine_1phase/phy.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
fp = fp
closures = simple_closures
f = 0
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
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
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
start_time = 0
dt = 1
num_steps = 10
abort_on_solve_fail = true
solve_type = 'newton'
line_search = 'basic'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
nl_rel_tol = 1e-6
nl_abs_tol = 1e-5
nl_max_its = 5
l_tol = 1e-4
[]
[Outputs]
exodus = true
show = 'p T vel'
velocity_as_vector = false
interval = 5
[]
(modules/thermal_hydraulics/test/tests/postprocessors/flow_junction_flux_1phase/flow_junction_flux_1phase.i)
# This input file tests mass conservation at steady-state by looking at the
# net mass flux into the domain.
T_in = 523.0
m_dot = 100
p_out = 7e6
[GlobalParams]
initial_p = ${p_out}
initial_vel = 1
initial_T = ${T_in}
gravity_vector = '0 0 0'
closures = simple_closures
n_elems = 3
f = 0
scaling_factor_1phase = '1 1 1e-5'
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet_bc]
type = InletMassFlowRateTemperature1Phase
input = 'inlet:in'
m_dot = ${m_dot}
T = ${T_in}
[]
[inlet]
type = FlowChannel1Phase
fp = fp
position = '0 0 11'
orientation = '0 0 -1'
length = 1
A = 3
[]
[inlet_plenum]
type = VolumeJunction1Phase
position = '0 0 10'
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 1
connections = 'inlet:out channel1:in channel2:in'
volume = 1
scaling_factor_rhoEV = '1e-5'
[]
[channel1]
type = FlowChannel1Phase
fp = fp
position = '0 0 10'
orientation = '0 0 -1'
length = 10
A = 4
D_h = 1
[]
[K_bypass]
type = FormLossFromFunction1Phase
K_prime = 500
flow_channel = channel1
[]
[channel2]
type = FlowChannel1Phase
fp = fp
position = '0 0 10'
orientation = '0 0 -1'
length = 10
A = 1
D_h = 1
[]
[outlet_plenum]
type = VolumeJunction1Phase
position = '0 0 0'
initial_vel_x = 1
initial_vel_y = 0
initial_vel_z = 1
connections = 'channel1:out channel2:out outlet:in'
volume = 1
scaling_factor_rhoEV = '1e-5'
[]
[outlet]
type = FlowChannel1Phase
fp = fp
position = '0 0 0'
orientation = '0 0 -1'
length = 1
A = 1
[]
[outlet_bc]
type = Outlet1Phase
p = ${p_out}
input = 'outlet:out'
[]
[]
[Postprocessors]
[inlet_in_m_dot]
type = ADFlowBoundaryFlux1Phase
boundary = 'inlet_bc'
equation = mass
[]
[inlet_out_m_dot]
type = ADFlowJunctionFlux1Phase
boundary = 'inlet:out'
connection_index = 0
junction = inlet_plenum
equation = mass
[]
[channel1_in_m_dot]
type = ADFlowJunctionFlux1Phase
boundary = 'channel1:in'
connection_index = 1
junction = inlet_plenum
equation = mass
[]
[channel1_out_m_dot]
type = ADFlowJunctionFlux1Phase
boundary = 'channel1:out'
connection_index = 0
junction = outlet_plenum
equation = mass
[]
[channel2_in_m_dot]
type = ADFlowJunctionFlux1Phase
boundary = 'channel2:in'
connection_index = 2
junction = inlet_plenum
equation = mass
[]
[channel2_out_m_dot]
type = ADFlowJunctionFlux1Phase
boundary = 'channel2:out'
connection_index = 1
junction = outlet_plenum
equation = mass
[]
[outlet_in_m_dot]
type = ADFlowJunctionFlux1Phase
boundary = 'outlet:in'
connection_index = 2
junction = outlet_plenum
equation = mass
[]
[outlet_out_m_dot]
type = ADFlowBoundaryFlux1Phase
boundary = 'outlet_bc'
equation = mass
[]
[net_mass_flow_rate_domain]
type = LinearCombinationPostprocessor
pp_names = 'inlet_in_m_dot outlet_out_m_dot'
pp_coefs = '1 -1'
[]
[net_mass_flow_rate_volume_junction]
type = LinearCombinationPostprocessor
pp_names = 'inlet_out_m_dot channel1_in_m_dot channel2_in_m_dot'
pp_coefs = '1 -1 -1'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
start_time = 0
end_time = 10000
[TimeStepper]
type = IterationAdaptiveDT
dt = 0.01
optimal_iterations = 8
iteration_window = 2
[]
timestep_tolerance = 1e-6
abort_on_solve_fail = true
line_search = none
nl_rel_tol = 1e-8
nl_abs_tol = 2e-8
nl_max_its = 25
l_tol = 1e-3
l_max_its = 5
petsc_options = '-snes_converged_reason'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu '
[]
[Outputs]
[out]
type = CSV
execute_on = 'FINAL'
show = 'net_mass_flow_rate_domain net_mass_flow_rate_volume_junction'
[]
[]
(modules/thermal_hydraulics/test/tests/components/flow_connection/err.connecting_to_non_existent_component.i)
# Tests that we report an error if users try to connect to a non-existent component
[GlobalParams]
initial_p = 1e5
initial_T = 300
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[water]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
fp = water
position = '0 0 0'
orientation = '0 1 0'
length = 1
n_elems = 2
A = 1e-4
f = 0
[]
[inlet_1p]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 1
T = 300
[]
[outlet_1p]
type = Outlet1Phase
input = 'pipe1:out'
p = 1e5
[]
[]
[Executioner]
type = Transient
dt = 0.01
[]
(modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/phy.reversed_flow.i)
[GlobalParams]
gravity_vector = '0 0 0'
initial_T = 444.447
initial_p = 7e6
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
A = 1.0000000000e-04
D_h = 1.1283791671e-02
f = 0.1
length = 1
n_elems = 20
[]
[in]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = -0.18
T = 444.447
[]
[out]
type = InletStagnationPressureTemperature1Phase
input = 'pipe:out'
p0 = 7e6
T0 = 444.447
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
dt = 0.1
start_time = 0.0
num_steps = 30
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
abort_on_solve_fail = true
[]
[Outputs]
[exodus]
type = Exodus
file_base = phy.reversed_flow
show = 'rhouA T p'
[]
[]
(modules/thermal_hydraulics/tutorials/single_phase_flow/02_core.i)
T_in = 300. # K
m_dot_in = 1e-4 # kg/s
press = 1e5 # Pa
# core parameters
core_length = 1. # m
core_n_elems = 10
core_dia = ${units 2. cm -> m}
core_pitch = ${units 8.7 cm -> m}
tot_power = 100 # W
[GlobalParams]
initial_p = ${press}
initial_vel = 0
initial_T = ${T_in}
rdg_slope_reconstruction = full
closures = simple_closures
fp = he
[]
[Modules/FluidProperties]
[he]
type = IdealGasFluidProperties
molar_mass = 4e-3
gamma = 1.67
k = 0.2556
mu = 3.22639e-5
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[steel]
type = SolidMaterialProperties
rho = 8050
k = 45
cp = 466
[]
[]
[Components]
[total_power]
type = TotalPower
power = ${tot_power}
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'core_chan:in'
m_dot = ${m_dot_in}
T = ${T_in}
[]
[core_chan]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
A = ${fparse core_pitch * core_pitch - pi * core_dia * core_dia / 4.}
D_h = ${fparse (4 * core_pitch * core_pitch - pi * core_dia * core_dia) / (4 * core_pitch + pi * core_dia)}
f = 1.6
[]
[core_hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
names = 'block'
widths = '${fparse core_dia / 2.}'
materials = 'steel'
n_part_elems = 3
[]
[core_heating]
type = HeatSourceFromTotalPower
hs = core_hs
regions = block
power = total_power
[]
[core_ht]
type = HeatTransferFromHeatStructure1Phase
flow_channel = core_chan
hs = core_hs
hs_side = outer
P_hf = ${fparse pi * core_dia}
Hw = 1.36
[]
[outlet]
type = Outlet1Phase
input = 'core_chan:out'
p = ${press}
[]
[]
[Executioner]
type = Transient
start_time = 0
end_time = 1000
dt = 10
line_search = basic
solve_type = NEWTON
nl_rel_tol = 1e-5
nl_abs_tol = 1e-5
nl_max_its = 5
[]
[Outputs]
exodus = true
[console]
type = Console
max_rows = 1
outlier_variable_norms = false
[]
print_linear_residuals = false
[]
(modules/thermal_hydraulics/tutorials/single_phase_flow/06_custom_closures.i)
T_in = 300. # K
m_dot_in = 1e-4 # kg/s
press = 1e5 # Pa
# core parameters
core_length = 1. # m
core_n_elems = 10
core_dia = ${units 2. cm -> m}
core_pitch = ${units 8.7 cm -> m}
# pipe parameters
pipe_dia = ${units 10. cm -> m}
tot_power = 100 # W
# heat exchanger parameters
hx_dia_inner = ${units 10. cm -> m}
hx_wall_thickness = ${units 5. mm -> m}
hx_dia_outer = ${units 50. cm -> m}
hx_radius_wall = ${fparse hx_dia_inner / 2. + hx_wall_thickness}
hx_length = 1 # m
hx_n_elems = 10
m_dot_sec_in = 1 # kg/s
flow_blocks = 'core_chan up_pipe top_pipe hx/pri hx/sec down_pipe bottom_b bottom_a'
ht_blocks = 'core_chan hx/pri hx/sec'
[GlobalParams]
initial_p = ${press}
initial_vel = 0
initial_T = ${T_in}
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
rdg_slope_reconstruction = full
closures = no_closures
fp = he
[]
[Functions]
[m_dot_sec_fn]
type = PiecewiseLinear
xy_data = '
0 0
100 ${m_dot_sec_in}'
[]
[]
[Materials]
[f_mat]
type = ADWallFrictionChurchillMaterial
block = ${flow_blocks}
D_h = D_h
f_D = f_D
mu = mu
rho = rho
vel = vel
[]
[Hw_mat]
type = ADWallHeatTransferCoefficient3EqnDittusBoelterMaterial
block = ${ht_blocks}
D_h = D_h
rho = rho
vel = vel
T = T
T_wall = T_wall
cp = cp
mu = mu
k = k
[]
[]
[Modules/FluidProperties]
[he]
type = IdealGasFluidProperties
molar_mass = 4e-3
gamma = 1.67
k = 0.2556
mu = 3.22639e-5
[]
[water]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
[]
[]
[Closures]
[no_closures]
type = Closures1PhaseNone
[]
[]
[HeatStructureMaterials]
[steel]
type = SolidMaterialProperties
rho = 8050
k = 45
cp = 466
[]
[]
[Components]
[total_power]
type = TotalPower
power = ${tot_power}
[]
[core_chan]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
A = ${fparse core_pitch * core_pitch - pi * core_dia * core_dia / 4.}
D_h = ${core_dia}
[]
[core_hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
names = 'block'
widths = '${fparse core_dia / 2.}'
materials = 'steel'
n_part_elems = 3
[]
[core_heating]
type = HeatSourceFromTotalPower
hs = core_hs
regions = block
power = total_power
[]
[core_ht]
type = HeatTransferFromHeatStructure1Phase
flow_channel = core_chan
hs = core_hs
hs_side = outer
P_hf = ${fparse pi * core_dia}
[]
[jct1]
type = JunctionParallelChannels1Phase
position = '0 0 1'
connections = 'core_chan:out up_pipe:in'
volume = 1e-3
[]
[up_pipe]
type = FlowChannel1Phase
position = '0 0 1'
orientation = '0 0 1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct2]
type = VolumeJunction1Phase
position = '0 0 2'
connections = 'up_pipe:out top_pipe:in'
volume = 1e-3
[]
[top_pipe]
type = FlowChannel1Phase
position = '0 0 2'
orientation = '1 0 0'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct3]
type = VolumeJunction1Phase
position = '1 0 2'
connections = 'top_pipe:out hx/pri:in'
volume = 1e-3
[]
[hx]
[pri]
type = FlowChannel1Phase
position = '1 0 2'
orientation = '0 0 -1'
length = ${hx_length}
n_elems = ${hx_n_elems}
A = ${fparse pi * hx_dia_inner * hx_dia_inner / 4.}
D_h = ${hx_dia_inner}
[]
[ht_pri]
type = HeatTransferFromHeatStructure1Phase
hs = hx/wall
hs_side = inner
flow_channel = hx/pri
[]
[wall]
type = HeatStructureCylindrical
position = '1 0 2'
orientation = '0 0 -1'
length = ${hx_length}
n_elems = ${hx_n_elems}
widths = '${hx_wall_thickness}'
n_part_elems = '3'
materials = 'steel'
names = '0'
inner_radius = ${fparse hx_dia_inner / 2.}
[]
[ht_sec]
type = HeatTransferFromHeatStructure1Phase
hs = hx/wall
hs_side = outer
flow_channel = hx/sec
P_hf = ${fparse 2 * pi * hx_radius_wall}
[]
[sec]
type = FlowChannel1Phase
position = '${fparse 1 + hx_wall_thickness} 0 2'
orientation = '0 0 -1'
length = ${hx_length}
n_elems = ${hx_n_elems}
A = ${fparse pi * (hx_dia_outer * hx_dia_outer / 4. - hx_radius_wall * hx_radius_wall)}
D_h = ${fparse hx_dia_outer - (2 * hx_radius_wall)}
fp = water
[]
[]
[jct4]
type = VolumeJunction1Phase
position = '1 0 1'
connections = 'hx/pri:out down_pipe:in'
volume = 1e-3
[]
[down_pipe]
type = FlowChannel1Phase
position = '1 0 1'
orientation = '0 0 -1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct5]
type = VolumeJunction1Phase
position = '1 0 0'
connections = 'down_pipe:out bottom_b:in'
volume = 1e-3
[]
[bottom_b]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '-1 0 0'
length = 0.5
n_elems = 5
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[pump]
type = Pump1Phase
position = '0.5 0 0'
connections = 'bottom_b:out bottom_a:in'
volume = 1e-3
A_ref = ${fparse pi * pipe_dia * pipe_dia / 4.}
head = 0
[]
[bottom_a]
type = FlowChannel1Phase
position = '0.5 0 0'
orientation = '-1 0 0'
length = 0.5
n_elems = 5
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct6]
type = VolumeJunction1Phase
position = '0 0 0'
connections = 'bottom_a:out core_chan:in'
volume = 1e-3
[]
[inlet_sec]
type = InletMassFlowRateTemperature1Phase
input = 'hx/sec:out'
m_dot = 0
T = 300
[]
[outlet_sec]
type = Outlet1Phase
input = 'hx/sec:in'
p = ${press}
[]
[]
[ControlLogic]
[set_point]
type = GetFunctionValueControl
function = ${m_dot_in}
[]
[pid]
type = PIDControl
initial_value = 0
set_point = set_point:value
input = m_dot_pump
K_p = 250
K_i = 0.5
K_d = 0
[]
[set_pump_head]
type = SetComponentRealValueControl
component = pump
parameter = head
value = pid:output
[]
[m_dot_sec_inlet_ctrl]
type = GetFunctionValueControl
function = m_dot_sec_fn
[]
[set_m_dot_sec_ctrl]
type = SetComponentRealValueControl
component = inlet_sec
parameter = m_dot
value = m_dot_sec_inlet_ctrl:value
[]
[]
[Postprocessors]
[m_dot_pump]
type = ADFlowJunctionFlux1Phase
boundary = core_chan:in
connection_index = 1
equation = mass
junction = jct6
[]
[core_T_out]
type = SideAverageValue
boundary = core_chan:out
variable = T
[]
[hx_pri_T_out]
type = SideAverageValue
boundary = hx/pri:out
variable = T
[]
[hx_sec_T_in]
type = SideAverageValue
boundary = inlet_sec
variable = T
[]
[hx_sec_T_out]
type = SideAverageValue
boundary = outlet_sec
variable = T
[]
[]
[Executioner]
type = Transient
start_time = 0
[TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 1
[]
dtmax = 100
end_time = 50000
line_search = basic
solve_type = NEWTON
nl_rel_tol = 1e-5
nl_abs_tol = 1e-5
nl_max_its = 5
[]
[Outputs]
exodus = true
[console]
type = Console
max_rows = 1
outlier_variable_norms = false
[]
print_linear_residuals = false
[]
(modules/thermal_hydraulics/test/tests/components/heat_transfer_from_external_app_1phase/phy.T_wall_transfer_3eqn.slave.i)
# This is a part of phy.T_wall_transfer_3eqn test. See the master file for details.
[GlobalParams]
initial_p = 1.e5
initial_vel = 0.
initial_T = 300.
closures = simple_closures
[]
[Modules/FluidProperties]
[eos]
type = StiffenedGasFluidProperties
gamma = 2.35
q = -1167e3
q_prime = 0
p_inf = 1.e9
cv = 1816
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 9.6858407346e-01
D_h = 6.1661977237e+00
f = 0.01
fp = eos
[]
[hxconn]
type = HeatTransferFromExternalAppTemperature1Phase
flow_channel = pipe1
Hw = 3000
P_hf = 6.2831853072e-01
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 1
T = 300
[]
[outlet]
type = Outlet1Phase
input = 'pipe1:out'
p = 1e5
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
dt = 0.5
dtmin = 1e-7
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-4
nl_max_its = 20
l_tol = 1e-3
l_max_its = 300
start_time = 0.0
end_time = 5
[]
[Outputs]
[out]
type = Exodus
show = 'T_wall'
[]
[]
(modules/thermal_hydraulics/tutorials/single_phase_flow/05_secondary_side.i)
T_in = 300. # K
m_dot_in = 1e-4 # kg/s
press = 1e5 # Pa
# core parameters
core_length = 1. # m
core_n_elems = 10
core_dia = ${units 2. cm -> m}
core_pitch = ${units 8.7 cm -> m}
# pipe parameters
pipe_dia = ${units 10. cm -> m}
tot_power = 100 # W
# heat exchanger parameters
hx_dia_inner = ${units 10. cm -> m}
hx_wall_thickness = ${units 5. mm -> m}
hx_dia_outer = ${units 50. cm -> m}
hx_radius_wall = ${fparse hx_dia_inner / 2. + hx_wall_thickness}
hx_length = 1 # m
hx_n_elems = 10
m_dot_sec_in = 1 # kg/s
[GlobalParams]
initial_p = ${press}
initial_vel = 0
initial_T = ${T_in}
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
rdg_slope_reconstruction = full
closures = simple_closures
fp = he
f = 0.4
[]
[Functions]
[m_dot_sec_fn]
type = PiecewiseLinear
xy_data = '
0 0
100 ${m_dot_sec_in}'
[]
[]
[Modules/FluidProperties]
[he]
type = IdealGasFluidProperties
molar_mass = 4e-3
gamma = 1.67
k = 0.2556
mu = 3.22639e-5
[]
[water]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[steel]
type = SolidMaterialProperties
rho = 8050
k = 45
cp = 466
[]
[]
[Components]
[total_power]
type = TotalPower
power = ${tot_power}
[]
[core_chan]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
A = ${fparse core_pitch * core_pitch - pi * core_dia * core_dia / 4.}
D_h = ${core_dia}
f = 1.6
[]
[core_hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
names = 'block'
widths = '${fparse core_dia / 2.}'
materials = 'steel'
n_part_elems = 3
[]
[core_heating]
type = HeatSourceFromTotalPower
hs = core_hs
regions = block
power = total_power
[]
[core_ht]
type = HeatTransferFromHeatStructure1Phase
flow_channel = core_chan
hs = core_hs
hs_side = outer
P_hf = ${fparse pi * core_dia}
Hw = 1.36
[]
[jct1]
type = JunctionParallelChannels1Phase
position = '0 0 1'
connections = 'core_chan:out up_pipe:in'
volume = 1e-3
[]
[up_pipe]
type = FlowChannel1Phase
position = '0 0 1'
orientation = '0 0 1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct2]
type = VolumeJunction1Phase
position = '0 0 2'
connections = 'up_pipe:out top_pipe:in'
volume = 1e-3
[]
[top_pipe]
type = FlowChannel1Phase
position = '0 0 2'
orientation = '1 0 0'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct3]
type = VolumeJunction1Phase
position = '1 0 2'
connections = 'top_pipe:out hx/pri:in'
volume = 1e-3
[]
[hx]
[pri]
type = FlowChannel1Phase
position = '1 0 2'
orientation = '0 0 -1'
length = ${hx_length}
n_elems = ${hx_n_elems}
A = ${fparse pi * hx_dia_inner * hx_dia_inner / 4.}
D_h = ${hx_dia_inner}
[]
[ht_pri]
type = HeatTransferFromHeatStructure1Phase
hs = hx/wall
hs_side = inner
flow_channel = hx/pri
Hw = 0.97
[]
[wall]
type = HeatStructureCylindrical
position = '1 0 2'
orientation = '0 0 -1'
length = ${hx_length}
n_elems = ${hx_n_elems}
widths = '${hx_wall_thickness}'
n_part_elems = '3'
materials = 'steel'
names = '0'
inner_radius = ${fparse hx_dia_inner / 2.}
[]
[ht_sec]
type = HeatTransferFromHeatStructure1Phase
hs = hx/wall
hs_side = outer
flow_channel = hx/sec
P_hf = ${fparse 2 * pi * hx_radius_wall}
Hw = 36
[]
[sec]
type = FlowChannel1Phase
position = '${fparse 1 + hx_wall_thickness} 0 2'
orientation = '0 0 -1'
length = ${hx_length}
n_elems = ${hx_n_elems}
A = ${fparse pi * (hx_dia_outer * hx_dia_outer / 4. - hx_radius_wall * hx_radius_wall)}
D_h = ${fparse hx_dia_outer - (2 * hx_radius_wall)}
fp = water
f = 0.075
[]
[]
[jct4]
type = VolumeJunction1Phase
position = '1 0 1'
connections = 'hx/pri:out down_pipe:in'
volume = 1e-3
[]
[down_pipe]
type = FlowChannel1Phase
position = '1 0 1'
orientation = '0 0 -1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct5]
type = VolumeJunction1Phase
position = '1 0 0'
connections = 'down_pipe:out bottom_b:in'
volume = 1e-3
[]
[bottom_b]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '-1 0 0'
length = 0.5
n_elems = 5
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[pump]
type = Pump1Phase
position = '0.5 0 0'
connections = 'bottom_b:out bottom_a:in'
volume = 1e-3
A_ref = ${fparse pi * pipe_dia * pipe_dia / 4.}
head = 0
[]
[bottom_a]
type = FlowChannel1Phase
position = '0.5 0 0'
orientation = '-1 0 0'
length = 0.5
n_elems = 5
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct6]
type = VolumeJunction1Phase
position = '0 0 0'
connections = 'bottom_a:out core_chan:in'
volume = 1e-3
[]
[inlet_sec]
type = InletMassFlowRateTemperature1Phase
input = 'hx/sec:out'
m_dot = 0
T = 300
[]
[outlet_sec]
type = Outlet1Phase
input = 'hx/sec:in'
p = ${press}
[]
[]
[ControlLogic]
[set_point]
type = GetFunctionValueControl
function = ${m_dot_in}
[]
[pid]
type = PIDControl
initial_value = 0
set_point = set_point:value
input = m_dot_pump
K_p = 250
K_i = 0.5
K_d = 0
[]
[set_pump_head]
type = SetComponentRealValueControl
component = pump
parameter = head
value = pid:output
[]
[m_dot_sec_inlet_ctrl]
type = GetFunctionValueControl
function = m_dot_sec_fn
[]
[set_m_dot_sec_ctrl]
type = SetComponentRealValueControl
component = inlet_sec
parameter = m_dot
value = m_dot_sec_inlet_ctrl:value
[]
[]
[Postprocessors]
[m_dot_pump]
type = ADFlowJunctionFlux1Phase
boundary = core_chan:in
connection_index = 1
equation = mass
junction = jct6
[]
[core_T_out]
type = SideAverageValue
boundary = core_chan:out
variable = T
[]
[hx_pri_T_out]
type = SideAverageValue
boundary = hx/pri:out
variable = T
[]
[hx_sec_T_in]
type = SideAverageValue
boundary = inlet_sec
variable = T
[]
[hx_sec_T_out]
type = SideAverageValue
boundary = outlet_sec
variable = T
[]
[]
[Executioner]
type = Transient
start_time = 0
[TimeStepper]
type = SolutionTimeAdaptiveDT
dt = 1
[]
dtmax = 100
end_time = 50000
line_search = basic
solve_type = NEWTON
nl_rel_tol = 1e-5
nl_abs_tol = 1e-5
nl_max_its = 5
[]
[Outputs]
exodus = true
[console]
type = Console
max_rows = 1
outlier_variable_norms = false
[]
print_linear_residuals = false
[]
(modules/thermal_hydraulics/test/tests/actions/coupled_heat_transfer_action/sub.i)
# This is a part of T_wall_action test. See the master file for details.
[GlobalParams]
initial_p = 1.e5
initial_vel = 0.
initial_T = 300.
closures = simple_closures
[]
[Modules/FluidProperties]
[eos]
type = StiffenedGasFluidProperties
gamma = 2.35
q = -1167e3
q_prime = 0
p_inf = 1.e9
cv = 1816
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[AuxVariables]
[Hw]
family = monomial
order = constant
block = pipe1
[]
[]
[AuxKernels]
[Hw_ak]
type = ADMaterialRealAux
variable = Hw
property = 'Hw'
[]
[]
[UserObjects]
[T_uo]
type = LayeredAverage
direction = y
variable = T
num_layers = 10
block = pipe1
[]
[Hw_uo]
type = LayeredAverage
direction = y
variable = Hw
num_layers = 10
block = pipe1
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 1 0'
length = 1
n_elems = 10
A = 1.28584e-01
D_h = 8.18592e-01
f = 0.01
fp = eos
[]
[hxconn]
type = HeatTransferFromExternalAppTemperature1Phase
flow_channel = pipe1
Hw = 10000
P_hf = 6.28319e-01
initial_T_wall = 300.
var_type = elemental
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 10
T = 400
[]
[outlet]
type = Outlet1Phase
input = 'pipe1:out'
p = 1e5
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Postprocessors]
[T_wall_avg]
type = ElementAverageValue
variable = T_wall
execute_on = 'INITIAL TIMESTEP_END'
[]
[htc_avg]
type = ElementAverageValue
variable = Hw
execute_on = 'INITIAL TIMESTEP_END'
[]
[T_avg]
type = ElementAverageValue
variable = T
execute_on = 'INITIAL TIMESTEP_END'
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
dt = 0.1
dtmin = 1e-7
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-4
nl_max_its = 20
l_tol = 1e-3
l_max_its = 300
start_time = 0.0
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
[]
[Outputs]
[out]
type = Exodus
show = 'T_wall T Hw'
[]
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure_3d/test.i)
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
scaling_factor_temperature = 1e-2
initial_from_file = 'steady_state_out.e'
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Materials]
[mat]
type = ADGenericConstantMaterial
prop_names = 'density specific_heat thermal_conductivity'
prop_values = '16 356 6.5514e3'
[]
[]
[Functions]
[Ts_bc]
type = ParsedFunction
value = '2*sin(x*pi/2)+2*sin(pi*y) +507'
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '-1 0 -2.5'
orientation = '1 0 0'
length = 2
n_elems = 2
A = 0.3
D_h = 0.1935483871
f = 0.1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 6e6
[]
[ht]
type = HeatTransferFromHeatStructure3D1Phase
flow_channels = 'pipe'
hs = blk
boundary = blk:right
P_hf = 3
Hw = 1000
[]
[blk]
type = HeatStructureFromFile3D
file = box.e
position = '0 0 0'
[]
[right_bnd]
type = HSBoundarySpecifiedTemperature
hs = blk
boundary = blk:bottom
T = Ts_bc
[]
[]
[Executioner]
type = Transient
dt = 1
num_steps = 1
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
[]
[Outputs]
exodus = true
execute_on = 'initial'
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/flow_channel/steady_state.i)
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
scaling_factor_temperature = 1e-2
initial_T = 500
initial_p = 6.e6
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 6e6
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 1
num_steps = 100
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
[]
[Outputs]
exodus = true
execute_on = 'initial final'
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/misc/surrogate_power_profile/surrogate_power_profile.i)
# This takes an exodus file with a power profile and uses that in a heat structure
# of a core channel as power density. This tests the capability of taking a
# rattlesnake generated power profile and using it in RELAP-7.
[GlobalParams]
initial_p = 15.5e6
initial_vel = 0.
initial_T = 559.15
gravity_vector = '0 -9.8 0'
scaling_factor_1phase = '1 1 1e-4'
scaling_factor_temperature = 1e-2
closures = simple_closures
[]
[Modules/FluidProperties]
[water]
type = StiffenedGasFluidProperties
gamma = 2.35
q = -1167e3
q_prime = 0
p_inf = 1.e9
cv = 1816
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[fuel-mat]
type = SolidMaterialProperties
k = 2.5
cp = 300.
rho = 1.032e4
[]
[gap-mat]
type = SolidMaterialProperties
k = 0.6
cp = 1.
rho = 1.
[]
[clad-mat]
type = SolidMaterialProperties
k = 21.5
cp = 350.
rho = 6.55e3
[]
[]
[Components]
[CCH1:pipe]
type = FlowChannel1Phase
position = '0.02 0 0'
orientation = '0 1 0'
length = 3.865
n_elems = 20
A = 8.78882e-5
D_h = 0.01179
f = 0.01
fp = water
[]
[CCH1:solid]
type = HeatStructureCylindrical
position = '0.024748 0 0'
orientation = '0 1 0'
length = 3.865
n_elems = 20
initial_T = 559.15
names = 'fuel gap clad'
widths = '0.004096 0.0001 0.000552'
n_part_elems = '5 1 2'
materials = 'fuel-mat gap-mat clad-mat'
[]
[CCH1:hx]
type = HeatTransferFromHeatStructure1Phase
flow_channel = CCH1:pipe
hs = CCH1:solid
hs_side = outer
Hw = 5.33e4
P_hf = 2.9832563838489e-2
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'CCH1:pipe:in'
m_dot = 0.1
T = 559.15
[]
[outlet]
type = Outlet1Phase
input = 'CCH1:pipe:out'
p = 15.5e6
[]
[]
[UserObjects]
[reactor_power_density_uo]
type = SolutionUserObject
mesh = 'power_profile.e'
system_variables = power_density
translation = '0. 0. 0.'
[]
[]
[Functions]
[power_density_fn]
type = SolutionFunction
from_variable = power_density
solution = reactor_power_density_uo
[]
[]
[AuxVariables]
[power_density]
family = MONOMIAL
order = CONSTANT
block = 'CCH1:solid:fuel'
[]
[]
[AuxKernels]
[power_density_aux]
type = FunctionAux
variable = power_density
function = power_density_fn
block = 'CCH1:solid:fuel'
execute_on = 'timestep_begin'
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0.0
num_steps = 10
dt = 1e-2
abort_on_solve_fail = true
solve_type = 'PJFNK'
line_search = 'basic'
nl_rel_tol = 1e-12
nl_abs_tol = 1e-9
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
[out]
type = Exodus
[]
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/components/heat_source_volumetric_1phase/err.base.i)
[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]
[total_power]
type = TotalPower
power = 1
[]
[fch1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 1'
length = 1
n_elems = 2
A = 1
f = 0.1
fp = fp
closures = simple_closures
initial_T = 300
initial_p = 1e05
initial_vel = 0
[]
[hs]
type = HeatSourceVolumetric1Phase
flow_channel = fch1
q = 1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = fch1:in
m_dot = 1
T = 300
[]
[outlet]
type = Outlet1Phase
input = fch1:out
p = 1e-5
[]
[]
[Executioner]
type = Transient
dt = 1.e-2
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure/steady_state.i)
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
scaling_factor_temperature = 1e-2
initial_T = 500
initial_p = 6.e6
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[mat1]
type = SolidMaterialProperties
k = 16
cp = 356.
rho = 6.551400E+03
[]
[]
[Functions]
[Ts_init]
type = ParsedFunction
value = '2*sin(x*pi)+507'
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
names = 'wall'
n_part_elems = 1
materials = 'mat1'
inner_radius = 0.01
widths = 0.1
initial_T = Ts_init
[]
[ht]
type = HeatTransferFromHeatStructure1Phase
flow_channel = pipe
hs = hs
hs_side = INNER
Hw = 10000
[]
[temp_outside]
type = HSBoundarySpecifiedTemperature
hs = hs
boundary = hs:outer
T = Ts_init
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 6e6
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 1
num_steps = 100
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
[]
[Outputs]
exodus = true
execute_on = 'initial final'
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/components/junction_parallel_channels_1phase/phy.unequal_area.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_x = 50
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]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 10
T = 250
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
A = 1
n_elems = 20
initial_vel = 20
[]
[junction]
type = JunctionParallelChannels1Phase
connections = 'pipe1:out pipe2:in'
scaling_factor_rhouV = 1e-4
scaling_factor_rhoEV = 1e-5
position = '1 0 0'
volume = 1e-8
[]
[pipe2]
type = FlowChannel1Phase
position = '1 0 0'
orientation = '1 0 0'
length = 1
A = 0.5
n_elems = 20
initial_vel = 15
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e5
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 0
nl_abs_tol = 1e-6
nl_max_its = 15
l_tol = 1e-10
l_max_its = 10
start_time = 0
end_time = 3
dt = 0.1
abort_on_solve_fail = true
[]
[Postprocessors]
# These post-processors are used to test that the outlet side of the junction,
# which has half the area of the inlet side, has twice the momentum density
# that the inlet side does.
[rhouA_pipe1]
type = SideAverageValue
variable = rhouA
boundary = pipe1:out
[]
[rhouA_pipe2]
type = SideAverageValue
variable = rhouA
boundary = pipe2:out
[]
[test_rel_err]
type = RelativeDifferencePostprocessor
value1 = rhouA_pipe1
value2 = rhouA_pipe2
[]
[]
[Outputs]
[out]
type = CSV
show = test_rel_err
execute_on = 'final'
[]
[]
[Debug]
show_var_residual_norms = true
[]
(modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/jacobian.i)
[GlobalParams]
initial_p = 1e5
initial_T = 300
initial_vel = 2
gravity_vector = '9.81 0 0'
scaling_factor_1phase = '1. 1. 1'
closures = simple_closures
[]
[Modules/FluidProperties]
[eos]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = eos
# geometry
position = '0 0 0'
orientation = '1 0 0'
A = 1e-4
D_h = 1.12837916709551
f = 0
length = 1
n_elems = 2
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 1
T = 300
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
start_time = 0
dt = 1e-2
num_steps = 1
abort_on_solve_fail = true
solve_type = 'NEWTON'
petsc_options_iname = '-snes_type -snes_test_err'
petsc_options_value = 'test 1e-11'
[]
(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
[]
(modules/thermal_hydraulics/test/tests/components/deprecated/gate_valve.i)
[GlobalParams]
gravity_vector = '0 0 0'
closures = simple_closures
fp = fp
f = 0.0
initial_T = 300
initial_p = 1e5
initial_vel = 0
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
gamma = 1.4
molar_mass = 0.02897
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 1
T = 300
[]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 0'
length = 0.5
n_elems = 2
A = 0.1
[]
[valve]
type = GateValve
connections = 'pipe1:out pipe2:in'
open_area_fraction = 1
[]
[pipe2]
type = FlowChannel1Phase
position = '0.5 0 0'
orientation = '1 0 0'
length = 0.5
n_elems = 2
A = 0.1
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 1e5
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
solve_type = NEWTON
nl_rel_tol = 1e-8
nl_abs_tol = 1e-8
nl_max_its = 20
l_tol = 1e-4
start_time = 0.0
end_time = 1.0
dt = 0.01
abort_on_solve_fail = true
[]
(modules/thermal_hydraulics/test/tests/postprocessors/flow_boundary_flux_1phase/test.i)
T_in = 300
p_out = 1e5
[GlobalParams]
initial_p = ${p_out}
initial_T = ${T_in}
initial_vel = 0
gravity_vector = '0 0 0'
closures = simple_closures
n_elems = 50
f = 0
scaling_factor_1phase = '1 1e-2 1e-4'
[]
[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]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'channel:in'
m_dot = 0.1
T = ${T_in}
[]
[channel]
type = FlowChannel1Phase
fp = fp
position = '0 0 0'
orientation = '1 0 0'
length = 1
A = 3
[]
[outlet]
type = Outlet1Phase
p = ${p_out}
input = 'channel:out'
[]
[]
[Postprocessors]
[m_dot_in]
type = ADFlowBoundaryFlux1Phase
boundary = 'inlet'
equation = mass
[]
[m_dot_out]
type = ADFlowBoundaryFlux1Phase
boundary = 'outlet'
equation = mass
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = bdf2
start_time = 0
num_steps = 10
dt = 0.1
solve_type = NEWTON
nl_rel_tol = 1e-6
nl_abs_tol = 1e-6
nl_max_its = 25
l_tol = 1e-3
l_max_its = 5
[]
[Outputs]
[out]
type = CSV
show = 'm_dot_in m_dot_out'
execute_on = 'final'
[]
[]
(modules/thermal_hydraulics/test/tests/components/inlet_mass_flow_rate_1phase/clg.ctrl_T_3eqn_rdg.i)
[GlobalParams]
gravity_vector = '0 0 0'
initial_p = 1e5
initial_T = 300
initial_vel = 0.0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 50
A = 1.0000000000e-04
D_h = 1.1283791671e-02
f = 0.0
fp = fp
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 300
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 1e5
[]
[]
[Functions]
[inlet_T_fn]
type = PiecewiseLinear
x = '0 1'
y = '300 350'
[]
[]
[ControlLogic]
[set_inlet_value]
type = TimeFunctionComponentControl
component = inlet
parameter = T
function = inlet_T_fn
[]
[]
[Postprocessors]
[inlet_T]
type = RealComponentParameterValuePostprocessor
component = inlet
parameter = T
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0.0
dt = 0.25
num_steps = 5
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-10
nl_abs_tol = 1e-6
nl_max_its = 30
l_tol = 1e-3
l_max_its = 100
[Quadrature]
type = GAUSS
order = SECOND
[]
[]
[Outputs]
csv = true
[]
(modules/thermal_hydraulics/tutorials/single_phase_flow/03_upper_loop.i)
T_in = 300. # K
m_dot_in = 1e-4 # kg/s
press = 1e5 # Pa
# core parameters
core_length = 1. # m
core_n_elems = 10
core_dia = ${units 2. cm -> m}
core_pitch = ${units 8.7 cm -> m}
# pipe parameters
pipe_dia = ${units 10. cm -> m}
tot_power = 100 # W
[GlobalParams]
initial_p = ${press}
initial_vel = 0
initial_T = ${T_in}
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
rdg_slope_reconstruction = full
closures = simple_closures
fp = he
f = 0.4
[]
[Modules/FluidProperties]
[he]
type = IdealGasFluidProperties
molar_mass = 4e-3
gamma = 1.67
k = 0.2556
mu = 3.22639e-5
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[HeatStructureMaterials]
[steel]
type = SolidMaterialProperties
rho = 8050
k = 45
cp = 466
[]
[]
[Components]
[total_power]
type = TotalPower
power = ${tot_power}
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'core_chan:in'
m_dot = ${m_dot_in}
T = ${T_in}
[]
[core_chan]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
A = ${fparse core_pitch * core_pitch - pi * core_dia * core_dia / 4.}
D_h = ${core_dia}
f = 1.6
[]
[core_hs]
type = HeatStructureCylindrical
position = '0 0 0'
orientation = '0 0 1'
length = ${core_length}
n_elems = ${core_n_elems}
names = 'block'
widths = '${fparse core_dia / 2.}'
materials = 'steel'
n_part_elems = 3
[]
[core_heating]
type = HeatSourceFromTotalPower
hs = core_hs
regions = block
power = total_power
[]
[core_ht]
type = HeatTransferFromHeatStructure1Phase
flow_channel = core_chan
hs = core_hs
hs_side = outer
P_hf = ${fparse pi * core_dia}
Hw = 1.36
[]
[jct1]
type = JunctionParallelChannels1Phase
position = '0 0 1'
connections = 'core_chan:out up_pipe:in'
volume = 1e-3
[]
[up_pipe]
type = FlowChannel1Phase
position = '0 0 1'
orientation = '0 0 1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct2]
type = VolumeJunction1Phase
position = '0 0 2'
connections = 'up_pipe:out top_pipe:in'
volume = 1e-3
[]
[top_pipe]
type = FlowChannel1Phase
position = '0 0 2'
orientation = '1 0 0'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[jct3]
type = VolumeJunction1Phase
position = '1 0 2'
connections = 'top_pipe:out cooling_pipe:in'
volume = 1e-3
[]
[cooling_pipe]
type = FlowChannel1Phase
position = '1 0 2'
orientation = '0 0 -1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[cold_wall]
type = HeatTransferFromSpecifiedTemperature1Phase
flow_channel = cooling_pipe
T_wall = 300
Hw = 0.97
[]
[jct4]
type = VolumeJunction1Phase
position = '1 0 1'
connections = 'cooling_pipe:out down_pipe:in'
volume = 1e-3
[]
[down_pipe]
type = FlowChannel1Phase
position = '1 0 1'
orientation = '0 0 -1'
length = 1
n_elems = 10
A = ${fparse pi * pipe_dia * pipe_dia / 4.}
D_h = ${pipe_dia}
[]
[outlet]
type = Outlet1Phase
input = 'down_pipe:out'
p = ${press}
[]
[]
[Postprocessors]
[core_T_out]
type = SideAverageValue
boundary = core_chan:out
variable = T
[]
[hx_pri_T_out]
type = SideAverageValue
boundary = cooling_pipe:out
variable = T
[]
[]
[Executioner]
type = Transient
start_time = 0
end_time = 1000
dt = 10
line_search = basic
solve_type = NEWTON
nl_rel_tol = 1e-5
nl_abs_tol = 1e-5
nl_max_its = 5
[]
[Outputs]
exodus = true
[console]
type = Console
max_rows = 1
outlier_variable_norms = false
[]
print_linear_residuals = false
[]
(modules/thermal_hydraulics/test/tests/output/vector_velocity/test.i)
[GlobalParams]
initial_vel = 0
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 0
initial_p = 1e5
initial_T = 300
f = 0.1
closures = simple_closures
fp = fp
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'fch1:in'
m_dot = 1
T = 300
[]
[fch1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 1 1'
length = 1.73205
n_elems = 5
A = 1
[]
[junction]
type = VolumeJunction1Phase
position = '1 1 1'
connections = 'fch1:out fch2:out'
volume = 0.1
[]
[fch2]
type = FlowChannel1Phase
position = '2 2 2'
orientation = '-1 -1 -1'
length = 1.73205
n_elems = 5
A = 2
[]
[outlet]
type = Outlet1Phase
input = 'fch2:in'
p = 1e5
[]
[]
[Executioner]
type = Transient
dt = 0.5
num_steps = 50
solve_type = NEWTON
line_search = basic
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
nl_abs_tol = 1e-6
l_tol = 1e-03
automatic_scaling = true
[]
[Outputs]
print_linear_converged_reason = false
print_nonlinear_converged_reason = false
print_linear_residuals = false
[out]
type = Exodus
sync_only = false
sync_times = '0 5 10 15 20 25'
show = 'vel_x vel_y vel_z'
[]
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/heat_transfer_from_heat_structure_3d/steady_state.i)
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
scaling_factor_temperature = 1e-2
initial_T = 500
initial_p = 6.e6
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Materials]
[mat]
type = ADGenericConstantMaterial
prop_names = 'density specific_heat thermal_conductivity'
prop_values = '16 356 6.5514e3'
[]
[]
[Functions]
[Ts_init]
type = ParsedFunction
value = '2*sin(x*pi/2)+2*sin(pi*y) +507'
[]
[]
[Components]
[pipe]
type = FlowChannel1Phase
fp = fp
# geometry
position = '-1 0 -2.5'
orientation = '1 0 0'
length = 2
n_elems = 2
A = 0.3
D_h = 0.1935483871
f = 0.1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe:out'
p = 6e6
[]
[ht]
type = HeatTransferFromHeatStructure3D1Phase
flow_channels = 'pipe'
hs = blk
boundary = blk:right
P_hf = 3
Hw = 1000
[]
[blk]
type = HeatStructureFromFile3D
file = box.e
position = '0 0 0'
initial_T = Ts_init
[]
[right_bnd]
type = HSBoundarySpecifiedTemperature
hs = blk
boundary = blk:bottom
T = Ts_init
[]
[]
[Executioner]
type = Transient
dt = 1
num_steps = 100
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu'
[]
[Outputs]
exodus = true
execute_on = 'initial final'
[]
(modules/thermal_hydraulics/test/tests/misc/coupling_mD_flow/thm_non_overlapping.i)
T_in = 523.0
mdot = 10
pout = 7e6
[GlobalParams]
initial_p = ${pout}
initial_vel = 1
initial_T = ${T_in}
gravity_vector = '0 0 0'
closures = simple_closures
n_elems = 5
scaling_factor_1phase = '1 1e-2 1e-5'
f = 1
[]
[Modules/FluidProperties]
[fp]
type = IdealGasFluidProperties
gamma = 1.66
molar_mass = 0.004
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[inlet_bc]
type = InletMassFlowRateTemperature1Phase
input = 'inlet:in'
m_dot = ${mdot}
T = ${T_in}
[]
[inlet]
type = FlowChannel1Phase
fp = fp
position = '0 0 11'
orientation = '0 0 -1'
length = 1
A = 1
[]
[inlet_plenum]
type = VolumeJunction1Phase
position = '0 0 10'
initial_vel_x = 0
initial_vel_y = 0
initial_vel_z = 1
connections = 'inlet:out bypass:in core_top:in'
volume = 1
[]
[bypass]
type = FlowChannel1Phase
fp = fp
position = '2 0 10'
orientation = '0 0 -1'
length = 10
A = 0.01
[]
[core_top]
type = FlowChannel1Phase
fp = fp
position = '0 0 10'
orientation = '0 0 -1'
length = 0.1
A = 9
[]
[core_top_bc]
type = Outlet1Phase
p = ${pout}
input = 'core_top:out'
[]
[core_bottom_bc]
type = InletMassFlowRateTemperature1Phase
input = 'core_bottom:in'
m_dot = ${mdot}
T = ${T_in}
[]
[core_bottom]
type = FlowChannel1Phase
fp = fp
position = '0 0 0.1'
orientation = '0 0 -1'
length = 0.1
A = 9
[]
[outlet_plenum]
type = VolumeJunction1Phase
position = '0 0 0'
initial_vel_x = 1
initial_vel_y = 0
initial_vel_z = 1
connections = 'bypass:out core_bottom:out outlet:in'
volume = 1
[]
[outlet]
type = FlowChannel1Phase
fp = fp
position = '0 0 0'
orientation = '0 0 -1'
length = 1
A = 1
[]
[outlet_bc]
type = Outlet1Phase
p = ${pout}
input = 'outlet:out'
[]
[]
[ControlLogic]
[set_core_inlet_pressure]
type = SetComponentRealValueControl
component = core_top_bc
parameter = p
value = core_inlet_pressure
[]
[set_core_outlet_mdot]
type = SetComponentRealValueControl
component = core_bottom_bc
parameter = m_dot
value = core_outlet_mdot
[]
[set_core_outlet_temperature]
type = SetComponentRealValueControl
component = core_bottom_bc
parameter = T
value = core_outlet_temperature
[]
[]
[Postprocessors]
[core_inlet_pressure]
type = Receiver
default = ${pout}
[]
[core_outlet_mdot]
type = Receiver
default = ${mdot}
[]
[core_outlet_temperature]
type = Receiver
default = ${T_in}
[]
[core_outlet_pressure]
type = SideAverageValue
variable = p
boundary = 'core_bottom:in'
execute_on = 'INITIAL LINEAR TIMESTEP_END'
[]
[core_inlet_mdot]
type = SideAverageValue
variable = rhouA
boundary = 'core_top:out'
execute_on = 'INITIAL LINEAR TIMESTEP_END'
[]
[core_inlet_temperature]
type = SideAverageValue
variable = T
boundary = 'core_top:out'
execute_on = 'INITIAL LINEAR TIMESTEP_END'
[]
[bypass_inlet_pressure]
type = SideAverageValue
variable = p
boundary = 'bypass:in'
[]
[bypass_outlet_pressure]
type = SideAverageValue
variable = p
boundary = 'bypass:out'
[]
[bypass_pressure_drop]
type = DifferencePostprocessor
value1 = bypass_inlet_pressure
value2 = bypass_outlet_pressure
[]
[bypass_mdot]
type = SideAverageValue
variable = rhouA
boundary = 'bypass:out'
execute_on = 'INITIAL LINEAR TIMESTEP_END'
[]
[inlet_mdot]
type = SideAverageValue
variable = rhouA
boundary = 'inlet:in'
execute_on = 'INITIAL LINEAR TIMESTEP_END'
[]
[outlet_mdot]
type = SideAverageValue
variable = rhouA
boundary = 'outlet:out'
execute_on = 'INITIAL LINEAR TIMESTEP_END'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
timestep_tolerance = 1e-6
start_time = 0
end_time = 100
dt = 0.01
line_search = l2
nl_rel_tol = 1e-6
nl_abs_tol = 1e-4
nl_max_its = 25
l_tol = 1e-3
l_max_its = 20
petsc_options = '-snes_converged_reason'
petsc_options_iname = '-pc_type'
petsc_options_value = ' lu '
[]
[Outputs]
exodus = true
[]
(modules/thermal_hydraulics/test/tests/misc/initial_from_file/volume_junction/steady_state.i)
[GlobalParams]
scaling_factor_1phase = '1. 1.e-2 1.e-4'
initial_T = 500
initial_p = 6.e6
initial_vel = 0
closures = simple_closures
[]
[Modules/FluidProperties]
[fp]
type = StiffenedGasFluidProperties
gamma = 2.35
cv = 1816.0
q = -1.167e6
p_inf = 1.0e9
q_prime = 0
k = 0.5
mu = 281.8e-6
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
fp = fp
# geometry
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[junction]
type = VolumeJunction1Phase
connections = 'pipe1:out pipe2:in'
volume = 1
position = '1 0 0'
initial_vel_x = 0
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-4
[]
[pipe2]
type = FlowChannel1Phase
fp = fp
# geometry
position = '1 0 0'
orientation = '1 0 0'
length = 1
n_elems = 3
A = 1.907720E-04
D_h = 1.698566E-02
f = 0.1
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 0.1
T = 500
[]
[outlet]
type = Outlet1Phase
input = 'pipe2:out'
p = 6e6
[]
[]
[Preconditioning]
[pc]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
start_time = 0
dt = 1
num_steps = 100
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-8
nl_max_its = 10
l_tol = 1e-3
l_max_its = 100
[]
[Outputs]
exodus = true
execute_on = 'initial final'
velocity_as_vector = false
[]
(modules/thermal_hydraulics/test/tests/components/heat_transfer_from_external_app_1phase/phy.T_wall_transfer_elem_3eqn.slave.i)
# This is a part of phy.T_wall_transfer_elem_3eqn test. See the master file for details.
[GlobalParams]
initial_p = 1.e5
initial_vel = 0.
initial_T = 300.
closures = simple_closures
[]
[Modules/FluidProperties]
[eos]
type = StiffenedGasFluidProperties
gamma = 2.35
q = -1167e3
q_prime = 0
p_inf = 1.e9
cv = 1816
[]
[]
[Closures]
[simple_closures]
type = Closures1PhaseSimple
[]
[]
[Components]
[pipe1]
type = FlowChannel1Phase
position = '0 0 0'
orientation = '1 0 0'
length = 1
n_elems = 10
A = 9.6858407346e-01
D_h = 6.1661977237e+00
f = 0.01
fp = eos
[]
[hxconn]
type = HeatTransferFromExternalAppTemperature1Phase
flow_channel = pipe1
Hw = 3000
P_hf = 6.2831853072e-01
initial_T_wall = 300.
var_type = elemental
[]
[inlet]
type = InletMassFlowRateTemperature1Phase
input = 'pipe1:in'
m_dot = 1
T = 300
[]
[outlet]
type = Outlet1Phase
input = 'pipe1:out'
p = 1e5
[]
[]
[Preconditioning]
[SMP_PJFNK]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
scheme = 'bdf2'
dt = 0.5
dtmin = 1e-7
abort_on_solve_fail = true
solve_type = 'NEWTON'
line_search = 'basic'
nl_rel_tol = 1e-7
nl_abs_tol = 1e-4
nl_max_its = 20
l_tol = 1e-3
l_max_its = 300
start_time = 0.0
end_time = 5
[]
[Outputs]
[out]
type = Exodus
show = 'T_wall'
[]
[]
reversible
Default:True
C++ Type:bool
Controllable:No
Description:True for reversible, false for pure inlet