- epsilon_functionA function describing the porosity
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:A function describing the porosity
- momentum_componentThe component of the momentum equation that this kernel applies to.
C++ Type:MooseEnum
Controllable:No
Description:The component of the momentum equation that this kernel applies to.
- variableThe name of the variable that this residual object operates on
C++ Type:NonlinearVariableName
Unit:(no unit assumed)
Controllable:No
Description:The name of the variable that this residual object operates on
PNSFVPGradEpsilon
Introduces a -p * grad_eps term.
Overview
This object adds a residual equivalent to
This object must be included in any simulations where the term has been integrated by parts as is done by the PCNSFVKT and PCNSFVHLLC objects.
This object only accepts porosity as a function. If the porosity profile is complicated, a SolutionFunction may be used to represent it.
commentnote
We have yet to see good results when the porosity is represented by a discontinuous function. On straight-channel porosity jump tests with no momentum or energy sources/sinks, if the porosity steps down and up again and this change is represented in a discontinuous fashion, then the outlet pressure and density (the latter when solving a compressible problem) do not match the inlet pressure and density. However, if the step changes are approximated by steep continuous ramps, then the inlet and outlet pressure and density match as they should. This behavior has been observed both with Kurganov-Tadmor and HLLC discretizations of the advective fluxes.
Input Parameters
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- matrix_onlyFalseWhether this object is only doing assembly to matrices (no vectors)
Default:False
C++ Type:bool
Controllable:No
Description:Whether this object is only doing assembly to matrices (no vectors)
Optional Parameters
- absolute_value_vector_tagsThe tags for the vectors this residual object should fill with the absolute value of the residual contribution
C++ Type:std::vector<TagName>
Controllable:No
Description:The tags for the vectors this residual object should fill with the absolute value of the residual contribution
- extra_matrix_tagsThe extra tags for the matrices this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the matrices this Kernel should fill
- extra_vector_tagsThe extra tags for the vectors this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the vectors this Kernel should fill
- matrix_tagssystemThe tag for the matrices this Kernel should fill
Default:system
C++ Type:MultiMooseEnum
Options:nontime, system
Controllable:No
Description:The tag for the matrices this Kernel should fill
- vector_tagsnontimeThe tag for the vectors this Kernel should fill
Default:nontime
C++ Type:MultiMooseEnum
Options:nontime, time
Controllable:No
Description:The tag for the vectors this Kernel should fill
Contribution To Tagged Field Data 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:Yes
Description:Set the enabled status of the MooseObject.
- implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator
- 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
- ghost_layers1The number of layers of elements to ghost.
Default:1
C++ Type:unsigned short
Controllable:No
Description:The number of layers of elements to ghost.
- use_point_neighborsFalseWhether to use point neighbors, which introduces additional ghosting to that used for simple face neighbors.
Default:False
C++ Type:bool
Controllable:No
Description:Whether to use point neighbors, which introduces additional ghosting to that used for simple face neighbors.
Parallel Ghosting Parameters
- 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
Unit:(no unit assumed)
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.
- use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Material Property Retrieval Parameters
Input Files
- (modules/navier_stokes/test/tests/finite_volume/cns/mms/1d-with-bcs/varying-eps-basic-kt-mixed.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/mms/1d-with-bcs/varying-eps-hllc.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/rotated-2d-bkt-function-porosity-mixed.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/mms/1d-with-bcs/varying-eps-basic-kt-primitive.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/implicit-euler-basic-kt-primitive.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/rotated-2d-bkt-function-porosity.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/hllc.i)
- (modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/dc.i)
(modules/navier_stokes/test/tests/finite_volume/cns/mms/1d-with-bcs/varying-eps-basic-kt-mixed.i)
[GlobalParams]
fp = fp
limiter = 'central_difference'
two_term_boundary_expansion = true
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 1
xmin = .1
xmax = .6
nx = 2
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
[]
[sup_mom_x]
type = MooseVariableFVReal
[]
[T_fluid]
type = MooseVariableFVReal
[]
[]
[ICs]
[pressure]
type = FunctionIC
variable = pressure
function = 'exact_p'
[]
[sup_mom_x]
type = FunctionIC
variable = sup_mom_x
function = 'exact_rho_ud'
[]
[T_fluid]
type = FunctionIC
variable = T_fluid
function = 'exact_T'
[]
[]
[FVKernels]
[mass_advection]
type = PCNSFVKT
variable = pressure
eqn = "mass"
[]
[mass_fn]
type = FVBodyForce
variable = pressure
function = 'forcing_rho'
[]
[momentum_x_advection]
type = PCNSFVKT
variable = sup_mom_x
momentum_component = x
eqn = "momentum"
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_mom_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[momentum_fn]
type = FVBodyForce
variable = sup_mom_x
function = 'forcing_rho_ud'
[]
[fluid_energy_advection]
type = PCNSFVKT
variable = T_fluid
eqn = "energy"
[]
[energy_fn]
type = FVBodyForce
variable = T_fluid
function = 'forcing_rho_et'
[]
[]
[FVBCs]
[mass_left]
variable = pressure
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'mass'
[]
[momentum_left]
variable = sup_mom_x
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'momentum'
momentum_component = 'x'
[]
[energy_left]
variable = T_fluid
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'energy'
[]
[mass_right]
variable = pressure
type = PCNSFVStrongBC
boundary = right
eqn = 'mass'
pressure = 'exact_p'
[]
[momentum_right]
variable = sup_mom_x
type = PCNSFVStrongBC
boundary = right
eqn = 'momentum'
momentum_component = 'x'
pressure = 'exact_p'
[]
[energy_right]
variable = T_fluid
type = PCNSFVStrongBC
boundary = right
eqn = 'energy'
pressure = 'exact_p'
[]
# help gradient reconstruction
[pressure_right]
type = FVFunctionDirichletBC
variable = pressure
function = exact_p
boundary = 'right'
[]
[sup_mom_x_left]
type = FVFunctionDirichletBC
variable = sup_mom_x
function = exact_rho_ud
boundary = 'left'
[]
[T_fluid_left]
type = FVFunctionDirichletBC
variable = T_fluid
function = exact_T
boundary = 'left'
[]
[]
[Materials]
[var_mat]
type = PorousMixedVarMaterial
pressure = pressure
superficial_rhou = sup_mom_x
T_fluid = T_fluid
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[]
[Functions]
[exact_rho]
type = ParsedFunction
expression = '3.48788261470924*cos(x)'
[]
[forcing_rho]
type = ParsedFunction
expression = '-3.83667087618017*sin(1.1*x)*cos(1.3*x) - 4.53424739912202*sin(1.3*x)*cos(1.1*x)'
[]
[exact_rho_ud]
type = ParsedFunction
expression = '3.48788261470924*cos(1.1*x)*cos(1.3*x)'
[]
[forcing_rho_ud]
type = ParsedFunction
expression = '(-(10.6975765229419*cos(1.5*x)/cos(x) - 0.697576522941849*cos(1.1*x)^2/cos(x)^2)*sin(x) + (10.6975765229419*sin(x)*cos(1.5*x)/cos(x)^2 - 1.3951530458837*sin(x)*cos(1.1*x)^2/cos(x)^3 + 1.53466835047207*sin(1.1*x)*cos(1.1*x)/cos(x)^2 - 16.0463647844128*sin(1.5*x)/cos(x))*cos(x))*cos(1.3*x) + 3.48788261470924*sin(x)*cos(1.1*x)^2*cos(1.3*x)/cos(x)^2 - 7.67334175236034*sin(1.1*x)*cos(1.1*x)*cos(1.3*x)/cos(x) - 4.53424739912202*sin(1.3*x)*cos(1.1*x)^2/cos(x)'
[]
[exact_rho_et]
type = ParsedFunction
expression = '26.7439413073546*cos(1.5*x)'
[]
[forcing_rho_et]
type = ParsedFunction
expression = '1.0*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(x)*cos(1.1*x)*cos(1.3*x)/cos(x)^2 - 1.1*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(1.1*x)*cos(1.3*x)/cos(x) - 1.3*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(1.3*x)*cos(1.1*x)/cos(x) + 1.0*(-(10.6975765229419*cos(1.5*x)/cos(x) - 0.697576522941849*cos(1.1*x)^2/cos(x)^2)*sin(x) + (10.6975765229419*sin(x)*cos(1.5*x)/cos(x)^2 - 1.3951530458837*sin(x)*cos(1.1*x)^2/cos(x)^3 + 1.53466835047207*sin(1.1*x)*cos(1.1*x)/cos(x)^2 - 16.0463647844128*sin(1.5*x)/cos(x))*cos(x) - 40.1159119610319*sin(1.5*x))*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[exact_T]
type = ParsedFunction
expression = '0.0106975765229418*cos(1.5*x)/cos(x) - 0.000697576522941848*cos(1.1*x)^2/cos(x)^2'
[]
[exact_eps_p]
type = ParsedFunction
expression = '3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x)*cos(1.3*x)'
[]
[exact_p]
type = ParsedFunction
expression = '3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x)'
[]
[exact_sup_vel_x]
type = ParsedFunction
expression = '1.0*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[eps]
type = ParsedFunction
expression = 'cos(1.3*x)'
[]
[exact_superficial_velocity]
type = ParsedVectorFunction
expression_x = '1.0*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[]
[Executioner]
solve_type = NEWTON
type = Transient
num_steps = 1
dtmin = 1
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
nl_max_its = 50
line_search = bt
nl_rel_tol = 1e-12
nl_abs_tol = 1e-12
[]
[Outputs]
exodus = true
csv = true
[]
[Debug]
show_var_residual_norms = true
[]
[Postprocessors]
[h]
type = AverageElementSize
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2pressure]
type = ElementL2Error
variable = pressure
function = exact_p
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2sup_mom_x]
variable = sup_mom_x
function = exact_rho_ud
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2T_fluid]
variable = T_fluid
function = exact_T
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[]
(modules/navier_stokes/test/tests/finite_volume/cns/mms/1d-with-bcs/varying-eps-hllc.i)
[GlobalParams]
fp = fp
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 1
xmin = .1
xmax = .6
nx = 2
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
[]
[sup_mom_x]
type = MooseVariableFVReal
[]
[T_fluid]
type = MooseVariableFVReal
[]
[]
[ICs]
[pressure]
type = FunctionIC
variable = pressure
function = 'exact_p'
[]
[sup_mom_x]
type = FunctionIC
variable = sup_mom_x
function = 'exact_rho_ud'
[]
[T_fluid]
type = FunctionIC
variable = T_fluid
function = 'exact_T'
[]
[]
[FVKernels]
[mass_advection]
type = PCNSFVMassHLLC
variable = pressure
[]
[mass_fn]
type = FVBodyForce
variable = pressure
function = 'forcing_rho'
[]
[momentum_x_advection]
type = PCNSFVMomentumHLLC
variable = sup_mom_x
momentum_component = x
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_mom_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[momentum_fn]
type = FVBodyForce
variable = sup_mom_x
function = 'forcing_rho_ud'
[]
[fluid_energy_advection]
type = PCNSFVFluidEnergyHLLC
variable = T_fluid
[]
[energy_fn]
type = FVBodyForce
variable = T_fluid
function = 'forcing_rho_et'
[]
[]
[FVBCs]
[mass_left]
variable = pressure
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'mass'
[]
[momentum_left]
variable = sup_mom_x
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'momentum'
momentum_component = 'x'
[]
[energy_left]
variable = T_fluid
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'energy'
[]
[mass_right]
variable = pressure
type = PCNSFVStrongBC
boundary = right
eqn = 'mass'
pressure = 'exact_p'
[]
[momentum_right]
variable = sup_mom_x
type = PCNSFVStrongBC
boundary = right
eqn = 'momentum'
momentum_component = 'x'
pressure = 'exact_p'
[]
[energy_right]
variable = T_fluid
type = PCNSFVStrongBC
boundary = right
eqn = 'energy'
pressure = 'exact_p'
[]
[]
[Materials]
[var_mat]
type = PorousMixedVarMaterial
pressure = pressure
superficial_rhou = sup_mom_x
T_fluid = T_fluid
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[]
[Functions]
[exact_rho]
type = ParsedFunction
expression = '3.48788261470924*cos(x)'
[]
[forcing_rho]
type = ParsedFunction
expression = '-3.83667087618017*sin(1.1*x)*cos(1.3*x) - 4.53424739912202*sin(1.3*x)*cos(1.1*x)'
[]
[exact_rho_ud]
type = ParsedFunction
expression = '3.48788261470924*cos(1.1*x)*cos(1.3*x)'
[]
[forcing_rho_ud]
type = ParsedFunction
expression = '(-(10.6975765229419*cos(1.5*x)/cos(x) - 0.697576522941849*cos(1.1*x)^2/cos(x)^2)*sin(x) + (10.6975765229419*sin(x)*cos(1.5*x)/cos(x)^2 - 1.3951530458837*sin(x)*cos(1.1*x)^2/cos(x)^3 + 1.53466835047207*sin(1.1*x)*cos(1.1*x)/cos(x)^2 - 16.0463647844128*sin(1.5*x)/cos(x))*cos(x))*cos(1.3*x) + 3.48788261470924*sin(x)*cos(1.1*x)^2*cos(1.3*x)/cos(x)^2 - 7.67334175236034*sin(1.1*x)*cos(1.1*x)*cos(1.3*x)/cos(x) - 4.53424739912202*sin(1.3*x)*cos(1.1*x)^2/cos(x)'
[]
[exact_rho_et]
type = ParsedFunction
expression = '26.7439413073546*cos(1.5*x)'
[]
[forcing_rho_et]
type = ParsedFunction
expression = '1.0*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(x)*cos(1.1*x)*cos(1.3*x)/cos(x)^2 - 1.1*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(1.1*x)*cos(1.3*x)/cos(x) - 1.3*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(1.3*x)*cos(1.1*x)/cos(x) + 1.0*(-(10.6975765229419*cos(1.5*x)/cos(x) - 0.697576522941849*cos(1.1*x)^2/cos(x)^2)*sin(x) + (10.6975765229419*sin(x)*cos(1.5*x)/cos(x)^2 - 1.3951530458837*sin(x)*cos(1.1*x)^2/cos(x)^3 + 1.53466835047207*sin(1.1*x)*cos(1.1*x)/cos(x)^2 - 16.0463647844128*sin(1.5*x)/cos(x))*cos(x) - 40.1159119610319*sin(1.5*x))*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[exact_T]
type = ParsedFunction
expression = '0.0106975765229418*cos(1.5*x)/cos(x) - 0.000697576522941848*cos(1.1*x)^2/cos(x)^2'
[]
[exact_eps_p]
type = ParsedFunction
expression = '3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x)*cos(1.3*x)'
[]
[exact_p]
type = ParsedFunction
expression = '3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x)'
[]
[exact_sup_vel_x]
type = ParsedFunction
expression = '1.0*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[eps]
type = ParsedFunction
expression = 'cos(1.3*x)'
[]
[exact_superficial_velocity]
type = ParsedVectorFunction
expression_x = '1.0*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[]
[Executioner]
solve_type = NEWTON
type = Steady
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
nl_max_its = 50
line_search = bt
nl_rel_tol = 1e-12
nl_abs_tol = 1e-12
[]
[Outputs]
exodus = true
csv = true
[]
[Debug]
show_var_residual_norms = true
[]
[Postprocessors]
[h]
type = AverageElementSize
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2pressure]
type = ElementL2Error
variable = pressure
function = exact_p
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2sup_mom_x]
variable = sup_mom_x
function = exact_rho_ud
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2T_fluid]
variable = T_fluid
function = exact_T
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[]
(modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/rotated-2d-bkt-function-porosity-mixed.i)
p_initial=1.01e5
T=273.15
# u refers to the superficial velocity
u_in=1
rho_in=1.30524
sup_mom_y_in=${fparse u_in * rho_in}
user_limiter='upwind'
friction_coeff=10
[GlobalParams]
fp = fp
two_term_boundary_expansion = true
limiter = ${user_limiter}
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1
nx = 3
ymin = 0
ymax = 18
ny = 90
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
initial_condition = ${p_initial}
[]
[sup_mom_x]
type = MooseVariableFVReal
initial_condition = 1e-15
scaling = 1e-2
[]
[sup_mom_y]
type = MooseVariableFVReal
initial_condition = 1e-15
scaling = 1e-2
[]
[T_fluid]
type = MooseVariableFVReal
initial_condition = ${T}
scaling = 1e-5
[]
[]
[AuxVariables]
[vel_y]
type = MooseVariableFVReal
[]
[rho]
type = MooseVariableFVReal
[]
[eps]
type = MooseVariableFVReal
[]
[]
[AuxKernels]
[vel_y]
type = ADMaterialRealAux
variable = vel_y
property = vel_y
execute_on = 'timestep_end'
[]
[rho]
type = ADMaterialRealAux
variable = rho
property = rho
execute_on = 'timestep_end'
[]
[eps]
type = MaterialRealAux
variable = eps
property = porosity
execute_on = 'timestep_end'
[]
[]
[FVKernels]
[mass_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_dt'
variable = pressure
[]
[mass_advection]
type = PCNSFVKT
variable = pressure
eqn = "mass"
[]
[momentum_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhou_dt'
variable = sup_mom_x
[]
[momentum_advection]
type = PCNSFVKT
variable = sup_mom_x
eqn = "momentum"
momentum_component = 'x'
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_mom_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[drag]
type = PCNSFVMomentumFriction
variable = sup_mom_x
momentum_component = 'x'
Darcy_name = 'cl'
momentum_name = superficial_rhou
[]
[momentum_time_y]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhov_dt'
variable = sup_mom_y
[]
[momentum_advection_y]
type = PCNSFVKT
variable = sup_mom_y
eqn = "momentum"
momentum_component = 'y'
[]
[eps_grad_y]
type = PNSFVPGradEpsilon
variable = sup_mom_y
momentum_component = 'y'
epsilon_function = 'eps'
[]
[drag_y]
type = PCNSFVMomentumFriction
variable = sup_mom_y
momentum_component = 'y'
Darcy_name = 'cl'
momentum_name = superficial_rhov
[]
[energy_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_et_dt'
variable = T_fluid
[]
[energy_advection]
type = PCNSFVKT
variable = T_fluid
eqn = "energy"
[]
[]
[FVBCs]
[rho_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = pressure
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'mass'
velocity_function_includes_rho = true
[]
[rhou_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = sup_mom_x
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'x'
velocity_function_includes_rho = true
[]
[rhov_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = sup_mom_y
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'y'
velocity_function_includes_rho = true
[]
[rho_et_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = T_fluid
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'energy'
velocity_function_includes_rho = true
[]
[rho_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = pressure
pressure = ${p_initial}
eqn = 'mass'
[]
[rhou_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = sup_mom_x
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'x'
[]
[rhov_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = sup_mom_y
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'y'
[]
[rho_et_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = T_fluid
pressure = ${p_initial}
eqn = 'energy'
[]
[wall_pressure_x]
type = PCNSFVImplicitMomentumPressureBC
momentum_component = 'x'
boundary = 'left right'
variable = sup_mom_x
[]
[wall_pressure_y]
type = PCNSFVImplicitMomentumPressureBC
momentum_component = 'y'
boundary = 'left right'
variable = sup_mom_y
[]
# Use these to help create more accurate cell centered gradients for cells adjacent to boundaries
[T_bottom]
type = FVDirichletBC
variable = T_fluid
value = ${T}
boundary = 'bottom'
[]
[sup_mom_x_bottom_and_walls]
type = FVDirichletBC
variable = sup_mom_x
value = 0
boundary = 'bottom left right'
[]
[sup_mom_y_walls]
type = FVDirichletBC
variable = sup_mom_y
value = 0
boundary = 'left right'
[]
[sup_mom_y_bottom]
type = FVDirichletBC
variable = sup_mom_y
value = ${sup_mom_y_in}
boundary = 'bottom'
[]
[p_top]
type = FVDirichletBC
variable = pressure
value = ${p_initial}
boundary = 'top'
[]
[]
[Functions]
[ud_in]
type = ParsedVectorFunction
expression_x = '0'
expression_y = '${sup_mom_y_in}'
[]
[eps]
type = ParsedFunction
expression = 'if(y < 2.8, 1,
if(y < 3.2, 1 - .5 / .4 * (y - 2.8),
if(y < 6.8, .5,
if(y < 7.2, .5 - .25 / .4 * (y - 6.8),
if(y < 10.8, .25,
if(y < 11.2, .25 + .25 / .4 * (y - 10.8),
if(y < 14.8, .5,
if(y < 15.2, .5 + .5 / .4 * (y - 14.8),
1))))))))'
[]
[]
[Materials]
[var_mat]
type = PorousMixedVarMaterial
pressure = pressure
T_fluid = T_fluid
superficial_rhou = sup_mom_x
superficial_rhov = sup_mom_y
fp = fp
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[ad_generic]
type = ADGenericConstantVectorMaterial
prop_names = 'cl'
prop_values = '${friction_coeff} ${friction_coeff} ${friction_coeff}'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
solve_type = NEWTON
line_search = 'bt'
type = Transient
nl_max_its = 20
[TimeStepper]
type = IterationAdaptiveDT
dt = 5e-5
optimal_iterations = 6
growth_factor = 1.2
[]
num_steps = 10000
end_time = 500
nl_abs_tol = 1e-7
petsc_options_iname = '-pc_type -pc_factor_mat_solver_type'
petsc_options_value = 'lu mumps'
[]
[Outputs]
[out]
type = Exodus
execute_on = 'final'
[]
checkpoint = true
[]
[Debug]
show_var_residual_norms = true
[]
(modules/navier_stokes/test/tests/finite_volume/cns/mms/1d-with-bcs/varying-eps-basic-kt-primitive.i)
[GlobalParams]
fp = fp
limiter = 'central_difference'
two_term_boundary_expansion = true
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 1
xmin = .1
xmax = .6
nx = 2
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
[]
[sup_vel_x]
type = MooseVariableFVReal
[]
[T_fluid]
type = MooseVariableFVReal
[]
[]
[ICs]
[pressure]
type = FunctionIC
variable = pressure
function = 'exact_p'
[]
[sup_vel_x]
type = FunctionIC
variable = sup_vel_x
function = 'exact_sup_vel_x'
[]
[T_fluid]
type = FunctionIC
variable = T_fluid
function = 'exact_T'
[]
[]
[FVKernels]
[mass_advection]
type = PCNSFVKT
variable = pressure
eqn = "mass"
[]
[mass_fn]
type = FVBodyForce
variable = pressure
function = 'forcing_rho'
[]
[momentum_x_advection]
type = PCNSFVKT
variable = sup_vel_x
momentum_component = x
eqn = "momentum"
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_vel_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[momentum_fn]
type = FVBodyForce
variable = sup_vel_x
function = 'forcing_rho_ud'
[]
[fluid_energy_advection]
type = PCNSFVKT
variable = T_fluid
eqn = "energy"
[]
[energy_fn]
type = FVBodyForce
variable = T_fluid
function = 'forcing_rho_et'
[]
[]
[FVBCs]
[mass_left]
variable = pressure
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'mass'
[]
[momentum_left]
variable = sup_vel_x
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'momentum'
momentum_component = 'x'
[]
[energy_left]
variable = T_fluid
type = PCNSFVStrongBC
boundary = left
T_fluid = 'exact_T'
superficial_velocity = 'exact_superficial_velocity'
eqn = 'energy'
[]
[mass_right]
variable = pressure
type = PCNSFVStrongBC
boundary = right
eqn = 'mass'
pressure = 'exact_p'
[]
[momentum_right]
variable = sup_vel_x
type = PCNSFVStrongBC
boundary = right
eqn = 'momentum'
momentum_component = 'x'
pressure = 'exact_p'
[]
[energy_right]
variable = T_fluid
type = PCNSFVStrongBC
boundary = right
eqn = 'energy'
pressure = 'exact_p'
[]
# help gradient reconstruction
[pressure_right]
type = FVFunctionDirichletBC
variable = pressure
function = exact_p
boundary = 'right'
[]
[sup_vel_x_left]
type = FVFunctionDirichletBC
variable = sup_vel_x
function = exact_sup_vel_x
boundary = 'left'
[]
[T_fluid_left]
type = FVFunctionDirichletBC
variable = T_fluid
function = exact_T
boundary = 'left'
[]
[]
[Materials]
[var_mat]
type = PorousPrimitiveVarMaterial
pressure = pressure
superficial_vel_x = sup_vel_x
T_fluid = T_fluid
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[]
[Functions]
[exact_rho]
type = ParsedFunction
expression = '3.48788261470924*cos(x)'
[]
[forcing_rho]
type = ParsedFunction
expression = '-3.83667087618017*sin(1.1*x)*cos(1.3*x) - 4.53424739912202*sin(1.3*x)*cos(1.1*x)'
[]
[exact_rho_ud]
type = ParsedFunction
expression = '3.48788261470924*cos(1.1*x)*cos(1.3*x)'
[]
[forcing_rho_ud]
type = ParsedFunction
expression = '(-(10.6975765229419*cos(1.5*x)/cos(x) - 0.697576522941849*cos(1.1*x)^2/cos(x)^2)*sin(x) + (10.6975765229419*sin(x)*cos(1.5*x)/cos(x)^2 - 1.3951530458837*sin(x)*cos(1.1*x)^2/cos(x)^3 + 1.53466835047207*sin(1.1*x)*cos(1.1*x)/cos(x)^2 - 16.0463647844128*sin(1.5*x)/cos(x))*cos(x))*cos(1.3*x) + 3.48788261470924*sin(x)*cos(1.1*x)^2*cos(1.3*x)/cos(x)^2 - 7.67334175236034*sin(1.1*x)*cos(1.1*x)*cos(1.3*x)/cos(x) - 4.53424739912202*sin(1.3*x)*cos(1.1*x)^2/cos(x)'
[]
[exact_rho_et]
type = ParsedFunction
expression = '26.7439413073546*cos(1.5*x)'
[]
[forcing_rho_et]
type = ParsedFunction
expression = '1.0*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(x)*cos(1.1*x)*cos(1.3*x)/cos(x)^2 - 1.1*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(1.1*x)*cos(1.3*x)/cos(x) - 1.3*(3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x) + 26.7439413073546*cos(1.5*x))*sin(1.3*x)*cos(1.1*x)/cos(x) + 1.0*(-(10.6975765229419*cos(1.5*x)/cos(x) - 0.697576522941849*cos(1.1*x)^2/cos(x)^2)*sin(x) + (10.6975765229419*sin(x)*cos(1.5*x)/cos(x)^2 - 1.3951530458837*sin(x)*cos(1.1*x)^2/cos(x)^3 + 1.53466835047207*sin(1.1*x)*cos(1.1*x)/cos(x)^2 - 16.0463647844128*sin(1.5*x)/cos(x))*cos(x) - 40.1159119610319*sin(1.5*x))*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[exact_T]
type = ParsedFunction
expression = '0.0106975765229418*cos(1.5*x)/cos(x) - 0.000697576522941848*cos(1.1*x)^2/cos(x)^2'
[]
[exact_eps_p]
type = ParsedFunction
expression = '3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x)*cos(1.3*x)'
[]
[exact_p]
type = ParsedFunction
expression = '3.48788261470924*(3.06706896551724*cos(1.5*x)/cos(x) - 0.2*cos(1.1*x)^2/cos(x)^2)*cos(x)'
[]
[exact_sup_vel_x]
type = ParsedFunction
expression = '1.0*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[eps]
type = ParsedFunction
expression = 'cos(1.3*x)'
[]
[exact_superficial_velocity]
type = ParsedVectorFunction
expression_x = '1.0*cos(1.1*x)*cos(1.3*x)/cos(x)'
[]
[]
[Executioner]
solve_type = NEWTON
type = Transient
num_steps = 1
dtmin = 1
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
nl_max_its = 50
line_search = bt
nl_rel_tol = 1e-12
nl_abs_tol = 1e-12
[]
[Outputs]
exodus = true
csv = true
[]
[Debug]
show_var_residual_norms = true
[]
[Postprocessors]
[h]
type = AverageElementSize
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2pressure]
type = ElementL2Error
variable = pressure
function = exact_p
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2sup_vel_x]
variable = sup_vel_x
function = exact_sup_vel_x
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[L2T_fluid]
variable = T_fluid
function = exact_T
type = ElementL2Error
outputs = 'console csv'
execute_on = 'timestep_end'
[]
[]
(modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/implicit-euler-basic-kt-primitive.i)
p_initial=1.01e5
T=273.15
# u refers to the superficial velocity
u_in=1
user_limiter='upwind'
[GlobalParams]
fp = fp
two_term_boundary_expansion = true
limiter = ${user_limiter}
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 1
xmin = 0
xmax = 18
nx = 180
[]
[to_pt5]
input = cartesian
type = SubdomainBoundingBoxGenerator
bottom_left = '2 0 0'
top_right = '4 1 0'
block_id = 1
[]
[pt5]
input = to_pt5
type = SubdomainBoundingBoxGenerator
bottom_left = '4 0 0'
top_right = '6 1 0'
block_id = 2
[]
[to_pt25]
input = pt5
type = SubdomainBoundingBoxGenerator
bottom_left = '6 0 0'
top_right = '8 1 0'
block_id = 3
[]
[pt25]
input = to_pt25
type = SubdomainBoundingBoxGenerator
bottom_left = '8 0 0'
top_right = '10 1 0'
block_id = 4
[]
[to_pt5_again]
input = pt25
type = SubdomainBoundingBoxGenerator
bottom_left = '10 0 0'
top_right = '12 1 0'
block_id = 5
[]
[pt5_again]
input = to_pt5_again
type = SubdomainBoundingBoxGenerator
bottom_left = '12 0 0'
top_right = '14 1 0'
block_id = 6
[]
[to_one]
input = pt5_again
type = SubdomainBoundingBoxGenerator
bottom_left = '14 0 0'
top_right = '16 1 0'
block_id = 7
[]
[one]
input = to_one
type = SubdomainBoundingBoxGenerator
bottom_left = '16 0 0'
top_right = '18 1 0'
block_id = 8
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
initial_condition = ${p_initial}
[]
[sup_vel_x]
type = MooseVariableFVReal
initial_condition = 1e-15
scaling = 1e-2
[]
[T_fluid]
type = MooseVariableFVReal
initial_condition = ${T}
scaling = 1e-5
[]
[]
[AuxVariables]
[vel_x]
type = MooseVariableFVReal
[]
[sup_mom_x]
type = MooseVariableFVReal
[]
[rho]
type = MooseVariableFVReal
[]
[worst_courant]
type = MooseVariableFVReal
[]
[porosity]
type = MooseVariableFVReal
[]
[]
[AuxKernels]
[vel_x]
type = ADMaterialRealAux
variable = vel_x
property = vel_x
execute_on = 'timestep_end'
[]
[sup_mom_x]
type = ADMaterialRealAux
variable = sup_mom_x
property = superficial_rhou
execute_on = 'timestep_end'
[]
[rho]
type = ADMaterialRealAux
variable = rho
property = rho
execute_on = 'timestep_end'
[]
[worst_courant]
type = Courant
variable = worst_courant
u = sup_vel_x
execute_on = 'timestep_end'
[]
[porosity]
type = MaterialRealAux
variable = porosity
property = porosity
execute_on = 'timestep_end'
[]
[]
[FVKernels]
[mass_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_dt'
variable = pressure
[]
[mass_advection]
type = PCNSFVKT
variable = pressure
eqn = "mass"
[]
[momentum_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhou_dt'
variable = sup_vel_x
[]
[momentum_advection]
type = PCNSFVKT
variable = sup_vel_x
eqn = "momentum"
momentum_component = 'x'
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_vel_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[energy_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_et_dt'
variable = T_fluid
[]
[energy_advection]
type = PCNSFVKT
variable = T_fluid
eqn = "energy"
[]
[]
[FVBCs]
[rho_left]
type = PCNSFVStrongBC
boundary = 'left'
variable = pressure
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'mass'
[]
[rhou_left]
type = PCNSFVStrongBC
boundary = 'left'
variable = sup_vel_x
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'x'
[]
[rho_et_left]
type = PCNSFVStrongBC
boundary = 'left'
variable = T_fluid
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'energy'
[]
[rho_right]
type = PCNSFVStrongBC
boundary = 'right'
variable = pressure
pressure = ${p_initial}
eqn = 'mass'
[]
[rhou_right]
type = PCNSFVStrongBC
boundary = 'right'
variable = sup_vel_x
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'x'
[]
[rho_et_right]
type = PCNSFVStrongBC
boundary = 'right'
variable = T_fluid
pressure = ${p_initial}
eqn = 'energy'
[]
# Use these to help create more accurate cell centered gradients for cells adjacent to boundaries
[T_left]
type = FVDirichletBC
variable = T_fluid
value = ${T}
boundary = 'left'
[]
[sup_vel_left]
type = FVDirichletBC
variable = sup_vel_x
value = ${u_in}
boundary = 'left'
[]
[p_right]
type = FVDirichletBC
variable = pressure
value = ${p_initial}
boundary = 'right'
[]
[]
[Functions]
[ud_in]
type = ParsedVectorFunction
expression_x = '${u_in}'
[]
[eps]
type = ParsedFunction
expression = 'if(x < 2, 1,
if(x < 4, 1 - .5 / 2 * (x - 2),
if(x < 6, .5,
if(x < 8, .5 - .25 / 2 * (x - 6),
if(x < 10, .25,
if(x < 12, .25 + .25 / 2 * (x - 10),
if(x < 14, .5,
if(x < 16, .5 + .5 / 2 * (x - 14),
1))))))))'
[]
[]
[Materials]
[var_mat]
type = PorousPrimitiveVarMaterial
pressure = pressure
T_fluid = T_fluid
superficial_vel_x = sup_vel_x
fp = fp
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[]
[Executioner]
solve_type = NEWTON
line_search = 'bt'
type = Transient
nl_max_its = 20
[TimeStepper]
type = IterationAdaptiveDT
dt = 5e-5
optimal_iterations = 6
growth_factor = 1.2
[]
num_steps = 10000
end_time = 500
nl_abs_tol = 1e-8
[]
[Outputs]
[out]
type = Exodus
execute_on = 'final'
[]
checkpoint = true
[]
[Debug]
show_var_residual_norms = true
[]
(modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/rotated-2d-bkt-function-porosity.i)
p_initial=1.01e5
T=273.15
# u refers to the superficial velocity
u_in=1
user_limiter='upwind'
friction_coeff=10
[GlobalParams]
fp = fp
two_term_boundary_expansion = true
limiter = ${user_limiter}
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1
nx = 3
ymin = 0
ymax = 18
ny = 90
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
initial_condition = ${p_initial}
[]
[sup_vel_x]
type = MooseVariableFVReal
initial_condition = 1e-15
scaling = 1e-2
[]
[sup_vel_y]
type = MooseVariableFVReal
initial_condition = 1e-15
scaling = 1e-2
[]
[T_fluid]
type = MooseVariableFVReal
initial_condition = ${T}
scaling = 1e-5
[]
[]
[AuxVariables]
[vel_y]
type = MooseVariableFVReal
[]
[sup_mom_y]
type = MooseVariableFVReal
[]
[rho]
type = MooseVariableFVReal
[]
[eps]
type = MooseVariableFVReal
[]
[]
[AuxKernels]
[vel_y]
type = ADMaterialRealAux
variable = vel_y
property = vel_y
execute_on = 'timestep_end'
[]
[sup_mom_y]
type = ADMaterialRealAux
variable = sup_mom_y
property = superficial_rhov
execute_on = 'timestep_end'
[]
[rho]
type = ADMaterialRealAux
variable = rho
property = rho
execute_on = 'timestep_end'
[]
[eps]
type = MaterialRealAux
variable = eps
property = porosity
execute_on = 'timestep_end'
[]
[]
[FVKernels]
[mass_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_dt'
variable = pressure
[]
[mass_advection]
type = PCNSFVKT
variable = pressure
eqn = "mass"
[]
[momentum_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhou_dt'
variable = sup_vel_x
[]
[momentum_advection]
type = PCNSFVKT
variable = sup_vel_x
eqn = "momentum"
momentum_component = 'x'
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_vel_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[drag]
type = PCNSFVMomentumFriction
variable = sup_vel_x
momentum_component = 'x'
Darcy_name = 'cl'
momentum_name = superficial_rhou
[]
[momentum_time_y]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhov_dt'
variable = sup_vel_y
[]
[momentum_advection_y]
type = PCNSFVKT
variable = sup_vel_y
eqn = "momentum"
momentum_component = 'y'
[]
[eps_grad_y]
type = PNSFVPGradEpsilon
variable = sup_vel_y
momentum_component = 'y'
epsilon_function = 'eps'
[]
[drag_y]
type = PCNSFVMomentumFriction
variable = sup_vel_y
momentum_component = 'y'
Darcy_name = 'cl'
momentum_name = superficial_rhov
[]
[energy_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_et_dt'
variable = T_fluid
[]
[energy_advection]
type = PCNSFVKT
variable = T_fluid
eqn = "energy"
[]
[]
[FVBCs]
[rho_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = pressure
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'mass'
[]
[rhou_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = sup_vel_x
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'x'
[]
[rhov_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = sup_vel_y
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'y'
[]
[rho_et_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = T_fluid
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'energy'
[]
[rho_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = pressure
pressure = ${p_initial}
eqn = 'mass'
[]
[rhou_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = sup_vel_x
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'x'
[]
[rhov_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = sup_vel_y
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'y'
[]
[rho_et_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = T_fluid
pressure = ${p_initial}
eqn = 'energy'
[]
[wall_pressure_x]
type = PCNSFVImplicitMomentumPressureBC
momentum_component = 'x'
boundary = 'left right'
variable = sup_vel_x
[]
[wall_pressure_y]
type = PCNSFVImplicitMomentumPressureBC
momentum_component = 'y'
boundary = 'left right'
variable = sup_vel_y
[]
# Use these to help create more accurate cell centered gradients for cells adjacent to boundaries
[T_bottom]
type = FVDirichletBC
variable = T_fluid
value = ${T}
boundary = 'bottom'
[]
[sup_vel_x_bottom_and_walls]
type = FVDirichletBC
variable = sup_vel_x
value = 0
boundary = 'bottom left right'
[]
[sup_vel_y_walls]
type = FVDirichletBC
variable = sup_vel_y
value = 0
boundary = 'left right'
[]
[sup_vel_y_bottom]
type = FVDirichletBC
variable = sup_vel_y
value = ${u_in}
boundary = 'bottom'
[]
[p_top]
type = FVDirichletBC
variable = pressure
value = ${p_initial}
boundary = 'top'
[]
[]
[Functions]
[ud_in]
type = ParsedVectorFunction
expression_x = '0'
expression_y = '${u_in}'
[]
[eps]
type = ParsedFunction
expression = 'if(y < 2.8, 1,
if(y < 3.2, 1 - .5 / .4 * (y - 2.8),
if(y < 6.8, .5,
if(y < 7.2, .5 - .25 / .4 * (y - 6.8),
if(y < 10.8, .25,
if(y < 11.2, .25 + .25 / .4 * (y - 10.8),
if(y < 14.8, .5,
if(y < 15.2, .5 + .5 / .4 * (y - 14.8),
1))))))))'
[]
[]
[Materials]
[var_mat]
type = PorousPrimitiveVarMaterial
pressure = pressure
T_fluid = T_fluid
superficial_vel_x = sup_vel_x
superficial_vel_y = sup_vel_y
fp = fp
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[ad_generic]
type = ADGenericConstantVectorMaterial
prop_names = 'cl'
prop_values = '${friction_coeff} ${friction_coeff} ${friction_coeff}'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
solve_type = NEWTON
line_search = 'bt'
type = Transient
nl_max_its = 20
[TimeStepper]
type = IterationAdaptiveDT
dt = 5e-5
optimal_iterations = 6
growth_factor = 1.2
[]
num_steps = 10000
end_time = 500
nl_abs_tol = 1e-7
petsc_options_iname = '-pc_type -pc_factor_mat_solver_type'
petsc_options_value = 'lu mumps'
[]
[Outputs]
[out]
type = Exodus
execute_on = 'final'
[]
checkpoint = true
[]
[Debug]
show_var_residual_norms = true
[]
(modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/hllc.i)
p_initial=1.01e5
T=273.15
# u refers to the superficial velocity
u_in=1
[GlobalParams]
fp = fp
two_term_boundary_expansion = true
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 1
xmin = 0
xmax = 18
nx = 180
[]
[to_pt5]
input = cartesian
type = SubdomainBoundingBoxGenerator
bottom_left = '2 0 0'
top_right = '4 1 0'
block_id = 1
[]
[pt5]
input = to_pt5
type = SubdomainBoundingBoxGenerator
bottom_left = '4 0 0'
top_right = '6 1 0'
block_id = 2
[]
[to_pt25]
input = pt5
type = SubdomainBoundingBoxGenerator
bottom_left = '6 0 0'
top_right = '8 1 0'
block_id = 3
[]
[pt25]
input = to_pt25
type = SubdomainBoundingBoxGenerator
bottom_left = '8 0 0'
top_right = '10 1 0'
block_id = 4
[]
[to_pt5_again]
input = pt25
type = SubdomainBoundingBoxGenerator
bottom_left = '10 0 0'
top_right = '12 1 0'
block_id = 5
[]
[pt5_again]
input = to_pt5_again
type = SubdomainBoundingBoxGenerator
bottom_left = '12 0 0'
top_right = '14 1 0'
block_id = 6
[]
[to_one]
input = pt5_again
type = SubdomainBoundingBoxGenerator
bottom_left = '14 0 0'
top_right = '16 1 0'
block_id = 7
[]
[one]
input = to_one
type = SubdomainBoundingBoxGenerator
bottom_left = '16 0 0'
top_right = '18 1 0'
block_id = 8
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
initial_condition = ${p_initial}
[]
[sup_vel_x]
type = MooseVariableFVReal
initial_condition = 1
scaling = 1e-2
[]
[T_fluid]
type = MooseVariableFVReal
initial_condition = ${T}
scaling = 1e-5
[]
[]
[AuxVariables]
[vel_x]
type = MooseVariableFVReal
[]
[sup_mom_x]
type = MooseVariableFVReal
[]
[rho]
type = MooseVariableFVReal
[]
[worst_courant]
type = MooseVariableFVReal
[]
[porosity]
type = MooseVariableFVReal
[]
[]
[AuxKernels]
[vel_x]
type = ADMaterialRealAux
variable = vel_x
property = vel_x
execute_on = 'timestep_end'
[]
[sup_mom_x]
type = ADMaterialRealAux
variable = sup_mom_x
property = superficial_rhou
execute_on = 'timestep_end'
[]
[rho]
type = ADMaterialRealAux
variable = rho
property = rho
execute_on = 'timestep_end'
[]
[worst_courant]
type = Courant
variable = worst_courant
u = sup_vel_x
execute_on = 'timestep_end'
[]
[porosity]
type = MaterialRealAux
variable = porosity
property = porosity
execute_on = 'timestep_end'
[]
[]
[FVKernels]
[mass_advection]
type = PCNSFVMassHLLC
variable = pressure
[]
[momentum_advection]
type = PCNSFVMomentumHLLC
variable = sup_vel_x
momentum_component = 'x'
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_vel_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[energy_advection]
type = PCNSFVFluidEnergyHLLC
variable = T_fluid
[]
[]
[FVBCs]
[rho_left]
type = PCNSFVStrongBC
boundary = 'left'
variable = pressure
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'mass'
[]
[rhou_left]
type = PCNSFVStrongBC
boundary = 'left'
variable = sup_vel_x
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'x'
[]
[rho_et_left]
type = PCNSFVStrongBC
boundary = 'left'
variable = T_fluid
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'energy'
[]
[rho_right]
type = PCNSFVStrongBC
boundary = 'right'
variable = pressure
pressure = ${p_initial}
eqn = 'mass'
[]
[rhou_right]
type = PCNSFVStrongBC
boundary = 'right'
variable = sup_vel_x
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'x'
[]
[rho_et_right]
type = PCNSFVStrongBC
boundary = 'right'
variable = T_fluid
pressure = ${p_initial}
eqn = 'energy'
[]
# Use these to help create more accurate cell centered gradients for cells adjacent to boundaries
[T_left]
type = FVDirichletBC
variable = T_fluid
value = ${T}
boundary = 'left'
[]
[sup_vel_left]
type = FVDirichletBC
variable = sup_vel_x
value = ${u_in}
boundary = 'left'
[]
[p_right]
type = FVDirichletBC
variable = pressure
value = ${p_initial}
boundary = 'right'
[]
[]
[Functions]
[ud_in]
type = ParsedVectorFunction
expression_x = '${u_in}'
[]
[eps]
type = ParsedFunction
expression = 'if(x < 2, 1,
if(x < 4, 1 - .5 / 2 * (x - 2),
if(x < 6, .5,
if(x < 8, .5 - .25 / 2 * (x - 6),
if(x < 10, .25,
if(x < 12, .25 + .25 / 2 * (x - 10),
if(x < 14, .5,
if(x < 16, .5 + .5 / 2 * (x - 14),
1))))))))'
[]
[]
[Materials]
[var_mat]
type = PorousPrimitiveVarMaterial
pressure = pressure
T_fluid = T_fluid
superficial_vel_x = sup_vel_x
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[]
[Executioner]
solve_type = NEWTON
line_search = 'bt'
type = Steady
[]
[Outputs]
[out]
type = Exodus
execute_on = 'final'
[]
checkpoint = true
[]
[Debug]
show_var_residual_norms = true
[]
(modules/navier_stokes/test/tests/finite_volume/cns/straight_channel_porosity_step/dc.i)
p_initial=1.01e5
T=273.15
# u refers to the superficial velocity
u_in=1
rho_in=1.30524
sup_mom_y_in=${fparse u_in * rho_in}
user_limiter='min_mod'
friction_coeff=10
[GlobalParams]
fp = fp
two_term_boundary_expansion = true
limiter = ${user_limiter}
[]
[Mesh]
[cartesian]
type = GeneratedMeshGenerator
dim = 2
xmin = 0
xmax = 1
nx = 3
ymin = 0
ymax = 18
ny = 90
[]
[]
[FluidProperties]
[fp]
type = IdealGasFluidProperties
[]
[]
[Problem]
fv_bcs_integrity_check = false
[]
[Variables]
[pressure]
type = MooseVariableFVReal
initial_condition = ${p_initial}
[]
[sup_mom_x]
type = MooseVariableFVReal
initial_condition = 1e-15
[]
[sup_mom_y]
type = MooseVariableFVReal
initial_condition = 1e-15
[]
[T_fluid]
type = MooseVariableFVReal
initial_condition = ${T}
[]
[]
[AuxVariables]
[vel_y]
type = MooseVariableFVReal
[]
[rho]
type = MooseVariableFVReal
[]
[eps]
type = MooseVariableFVReal
[]
[]
[AuxKernels]
[vel_y]
type = ADMaterialRealAux
variable = vel_y
property = vel_y
execute_on = 'timestep_end'
[]
[rho]
type = ADMaterialRealAux
variable = rho
property = rho
execute_on = 'timestep_end'
[]
[eps]
type = MaterialRealAux
variable = eps
property = porosity
execute_on = 'timestep_end'
[]
[]
[FVKernels]
[mass_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_dt'
variable = pressure
[]
[mass_advection]
type = PCNSFVKTDC
variable = pressure
eqn = "mass"
[]
[momentum_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhou_dt'
variable = sup_mom_x
[]
[momentum_advection]
type = PCNSFVKTDC
variable = sup_mom_x
eqn = "momentum"
momentum_component = 'x'
[]
[eps_grad]
type = PNSFVPGradEpsilon
variable = sup_mom_x
momentum_component = 'x'
epsilon_function = 'eps'
[]
[drag]
type = PCNSFVMomentumFriction
variable = sup_mom_x
momentum_component = 'x'
Darcy_name = 'cl'
momentum_name = superficial_rhou
[]
[momentum_time_y]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rhov_dt'
variable = sup_mom_y
[]
[momentum_advection_y]
type = PCNSFVKTDC
variable = sup_mom_y
eqn = "momentum"
momentum_component = 'y'
[]
[eps_grad_y]
type = PNSFVPGradEpsilon
variable = sup_mom_y
momentum_component = 'y'
epsilon_function = 'eps'
[]
[drag_y]
type = PCNSFVMomentumFriction
variable = sup_mom_y
momentum_component = 'y'
Darcy_name = 'cl'
momentum_name = superficial_rhov
[]
[energy_time]
type = FVMatPropTimeKernel
mat_prop_time_derivative = 'dsuperficial_rho_et_dt'
variable = T_fluid
[]
[energy_advection]
type = PCNSFVKTDC
variable = T_fluid
eqn = "energy"
[]
[]
[FVBCs]
[rho_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = pressure
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'mass'
velocity_function_includes_rho = true
[]
[rhou_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = sup_mom_x
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'x'
velocity_function_includes_rho = true
[]
[rhov_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = sup_mom_y
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'momentum'
momentum_component = 'y'
velocity_function_includes_rho = true
[]
[rho_et_bottom]
type = PCNSFVStrongBC
boundary = 'bottom'
variable = T_fluid
superficial_velocity = 'ud_in'
T_fluid = ${T}
eqn = 'energy'
velocity_function_includes_rho = true
[]
[rho_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = pressure
pressure = ${p_initial}
eqn = 'mass'
[]
[rhou_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = sup_mom_x
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'x'
[]
[rhov_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = sup_mom_y
pressure = ${p_initial}
eqn = 'momentum'
momentum_component = 'y'
[]
[rho_et_top]
type = PCNSFVStrongBC
boundary = 'top'
variable = T_fluid
pressure = ${p_initial}
eqn = 'energy'
[]
[wall_pressure_x]
type = PCNSFVImplicitMomentumPressureBC
momentum_component = 'x'
boundary = 'left right'
variable = sup_mom_x
[]
[wall_pressure_y]
type = PCNSFVImplicitMomentumPressureBC
momentum_component = 'y'
boundary = 'left right'
variable = sup_mom_y
[]
# Use these to help create more accurate cell centered gradients for cells adjacent to boundaries
[T_bottom]
type = FVDirichletBC
variable = T_fluid
value = ${T}
boundary = 'bottom'
[]
[sup_mom_x_bottom_and_walls]
type = FVDirichletBC
variable = sup_mom_x
value = 0
boundary = 'bottom left right'
[]
[sup_mom_y_walls]
type = FVDirichletBC
variable = sup_mom_y
value = 0
boundary = 'left right'
[]
[sup_mom_y_bottom]
type = FVDirichletBC
variable = sup_mom_y
value = ${sup_mom_y_in}
boundary = 'bottom'
[]
[p_top]
type = FVDirichletBC
variable = pressure
value = ${p_initial}
boundary = 'top'
[]
[]
[Functions]
[ud_in]
type = ParsedVectorFunction
expression_x = '0'
expression_y = '${sup_mom_y_in}'
[]
[eps]
type = ParsedFunction
expression = 'if(y < 2.8, 1,
if(y < 3.2, 1 - .5 / .4 * (y - 2.8),
if(y < 6.8, .5,
if(y < 7.2, .5 - .25 / .4 * (y - 6.8),
if(y < 10.8, .25,
if(y < 11.2, .25 + .25 / .4 * (y - 10.8),
if(y < 14.8, .5,
if(y < 15.2, .5 + .5 / .4 * (y - 14.8),
1))))))))'
[]
[]
[Materials]
[var_mat]
type = PorousMixedVarMaterial
pressure = pressure
T_fluid = T_fluid
superficial_rhou = sup_mom_x
superficial_rhov = sup_mom_y
porosity = porosity
[]
[porosity]
type = GenericFunctionMaterial
prop_names = 'porosity'
prop_values = 'eps'
[]
[ad_generic]
type = ADGenericConstantVectorMaterial
prop_names = 'cl'
prop_values = '${friction_coeff} ${friction_coeff} ${friction_coeff}'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
solve_type = NEWTON
line_search = 'bt'
type = Transient
nl_max_its = 20
[TimeStepper]
type = IterationAdaptiveDT
dt = 5e-5
optimal_iterations = 6
growth_factor = 1.2
[]
num_steps = 10
nl_abs_tol = 1e-8
automatic_scaling = true
compute_scaling_once = false
resid_vs_jac_scaling_param = 0.5
verbose = true
steady_state_detection = true
steady_state_tolerance = 1e-8
normalize_solution_diff_norm_by_dt = false
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
[]
[Outputs]
[out]
type = Exodus
[]
[]
[Debug]
show_var_residual_norms = true
[]
[Postprocessors]
active = ''
[num_nl]
type = NumNonlinearIterations
[]
[total_nl]
type = CumulativeValuePostprocessor
postprocessor = num_nl
[]
[]