- boundaryThe list of boundary IDs from the mesh where this boundary condition applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundary IDs from the mesh where this boundary condition applies
- temperatureThe name of the temperature variable
C++ Type:std::vector<VariableName>
Controllable:No
Description:The name of the temperature variable
GapFluxModelRadiation
Gap flux model for heat conduction across a gap due to radiation, based on the diffusion approximation.
Description
GapFluxModelRadiation computes a radiative heat flux across a gap following the diffusion approximation of radiation physics. This user object must be used in combination with ModularGapConductanceConstraint.
The heat flux across the gap is given by the classical expression (1) where is the Stephan-Boltzmann constant, is an emissivity function, is the surface temperature, is the farfield temperature, and is the radiant gap conductance. This expression can be rearranged to solve for : which reduces to (2)
The emissivity function is given as the harmonic mean of the two emissivity values, approximating the gap as defined by two infinite parallel planes. (3) where and are the near surface and farfield emissivity values, respectively.
Example Input File Syntax
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
GapFluxModelRadiation must be used in conjunction with the modular gap conductance constraint as shown below:
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = radiation
[]
Input Parameters
- primary_emissivity1The emissivity of the primary surface
Default:1
C++ Type:double
Controllable:No
Description:The emissivity of the primary surface
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- secondary_emissivity1The emissivity of the secondary surface
Default:1
C++ Type:double
Controllable:No
Description:The emissivity of the secondary surface
- stefan_boltzmann5.67037e-08Stefan-Boltzmann constant
Default:5.67037e-08
C++ Type:double
Controllable:No
Description:Stefan-Boltzmann constant
Optional Parameters
- allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
Default:False
C++ Type:bool
Controllable:No
Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- force_postauxFalseForces the UserObject to be executed in POSTAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in POSTAUX
- force_preauxFalseForces the UserObject to be executed in PREAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREAUX
- force_preicFalseForces the UserObject to be executed in PREIC during initial setup
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREIC during initial setup
- 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
- use_displaced_meshTrueWhether 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:True
C++ Type:bool
Controllable:No
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Advanced Parameters
Input Files
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_cylinder_mortar_error.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/gap_heat_transfer_sphere3D_mortar.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_sphere_mortar.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/gap_heat_transfer_3D_mortar.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar_action/modular_gap_heat_transfer_mortar_displaced_radiation_conduction_action_existing_UOs.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation_conduction_separate.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation_conduction.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_sphere_mortar_error.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_cylinder_mortar.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_rz_cylinder_mortar.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar_action/modular_gap_heat_transfer_mortar_displaced_conduction_UOs_function.i)
- (modules/heat_conduction/test/tests/gap_heat_transfer_mortar_action/modular_gap_heat_transfer_mortar_displaced_radiation_conduction_verbose.i)
- (modules/combined/test/tests/gap_heat_transfer_mortar/small-2d/multi_component_mortar_thermal_conduction.i)
References
No citations exist within this document.(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '101'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '100'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = radiation
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '101'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '100'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = radiation
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_cylinder_mortar_error.i)
rpv_core_gap_size = 0.15
core_outer_radius = 2
rpv_inner_radius = ${fparse 2 + rpv_core_gap_size}
rpv_outer_radius = ${fparse 2.5 + rpv_core_gap_size}
rpv_outer_htc = 10 # W/m^2/K
rpv_outer_Tinf = 300 # K
core_blocks = '1'
rpv_blocks = '3'
[Mesh]
[core_gap_rpv]
type = ConcentricCircleMeshGenerator
num_sectors = 10
radii = '${core_outer_radius} ${rpv_inner_radius} ${rpv_outer_radius}'
rings = '2 1 2'
has_outer_square = false
preserve_volumes = true
portion = full
[]
[rename_core_bdy]
type = SideSetsBetweenSubdomainsGenerator
input = core_gap_rpv
primary_block = 1
paired_block = 2
new_boundary = 'core_outer'
[]
[rename_inner_rpv_bdy]
type = SideSetsBetweenSubdomainsGenerator
input = rename_core_bdy
primary_block = 3
paired_block = 2
new_boundary = 'rpv_inner'
[]
[2d_mesh]
type = BlockDeletionGenerator
input = rename_inner_rpv_bdy
block = 2
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = 'rpv_inner'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = 2d_mesh
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = 'core_outer'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Variables]
[Tsolid]
initial_condition = 500
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Kernels]
[heat_source]
type = CoupledForce
variable = Tsolid
block = '${core_blocks}'
v = power_density
[]
[heat_conduction]
type = HeatConduction
variable = Tsolid
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = Tsolid
boundary = 'outer' # outer RPV
coefficient = ${rpv_outer_htc}
T_infinity = ${rpv_outer_Tinf}
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = Tsolid
boundary = 'rpv_inner'
primary_emissivity = 0.8
secondary_emissivity = 0.8
[]
[conduction]
type = GapFluxModelConduction
temperature = Tsolid
boundary = 'rpv_inner'
gap_conductivity = 0.1
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = Tsolid
primary_boundary = 'core_outer'
primary_subdomain = 10000
secondary_boundary = 'rpv_inner'
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
gap_geometry_type = 'CYLINDER'
cylinder_axis_point_2 = '0 0 5'
[]
[]
[AuxVariables]
[power_density]
block = '${core_blocks}'
initial_condition = 50e3
[]
[]
[Materials]
[simple_mat]
type = HeatConductionMaterial
thermal_conductivity = 34.6 # W/m/K
[]
[]
[Postprocessors]
[Tcore_avg]
type = ElementAverageValue
variable = Tsolid
block = '${core_blocks}'
[]
[Tcore_max]
type = ElementExtremeValue
value_type = max
variable = Tsolid
block = '${core_blocks}'
[]
[Tcore_min]
type = ElementExtremeValue
value_type = min
variable = Tsolid
block = '${core_blocks}'
[]
[Trpv_avg]
type = ElementAverageValue
variable = Tsolid
block = '${rpv_blocks}'
[]
[Trpv_max]
type = ElementExtremeValue
value_type = max
variable = Tsolid
block = '${rpv_blocks}'
[]
[Trpv_min]
type = ElementExtremeValue
value_type = min
variable = Tsolid
block = '${rpv_blocks}'
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = '${core_blocks}'
[]
[rpv_convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = Tsolid
boundary = 'outer' # outer RVP
T_fluid = ${rpv_outer_Tinf}
htc = ${rpv_outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(rpv_convective_out - ptot) / ptot'
pp_names = 'rpv_convective_out ptot'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = 'rpv_inner core_outer'
variable = 'Tsolid'
[]
[]
[Executioner]
type = Steady
petsc_options = '-snes_converged_reason -pc_svd_monitor'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package -mat_mffd_err -pc_factor_shift_type '
'-pc_factor_shift_amount'
petsc_options_value = ' lu superlu_dist 1e-5 NONZERO '
'1e-15'
snesmf_reuse_base = false
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
l_max_its = 100
line_search = none
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/gap_heat_transfer_sphere3D_mortar.i)
sphere_outer_htc = 10 # W/m^2/K
sphere_outer_Tinf = 300 # K
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Mesh]
[file]
type = FileMeshGenerator
file = sphere3D.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '2'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '3'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
[]
[Functions]
[temp]
type = PiecewiseLinear
x = '0 1'
y = '100 200'
[]
[]
[Variables]
[temp]
initial_condition = 500
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[AuxVariables]
# [gap_conductance]
# order = CONSTANT
# family = MONOMIAL
# []
[power_density]
block = 'fuel'
initial_condition = 50e3
[]
[]
[Kernels]
[heat_conduction]
type = HeatConduction
variable = temp
block = '1 2'
[]
[heat_source]
type = CoupledForce
variable = temp
block = 'fuel'
v = power_density
[]
[]
# [AuxKernels]
# [gap_cond]
# type = MaterialRealAux
# property = gap_conductance
# variable = gap_conductance
# boundary = 2
# []
# []
[Materials]
[heat1]
type = HeatConductionMaterial
block = '1 2'
specific_heat = 1.0
thermal_conductivity = 34.6
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
T = temp
boundary = 2
primary_emissivity = 0.0
secondary_emissivity = 0.0
[]
[conduction]
type = GapFluxModelConduction
T = temp
boundary = 2
gap_conductivity = 5.0
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
primary_boundary = 3
primary_subdomain = 10000
secondary_boundary = 2
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
gap_geometry_type = SPHERE
sphere_origin = '0 0 0'
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = temp
boundary = '4' # outer RPV
coefficient = ${sphere_outer_htc}
T_infinity = ${sphere_outer_Tinf}
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
dt = 1
dtmin = 0.01
end_time = 1
nl_rel_tol = 1e-12
nl_abs_tol = 1e-7
[]
[Outputs]
exodus = true
csv = true
[Console]
type = Console
[]
[]
[Postprocessors]
[temp_left]
type = SideAverageValue
boundary = 2
variable = temp
[]
[temp_right]
type = SideAverageValue
boundary = 3
variable = temp
[]
[flux_left]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 2
diffusivity = thermal_conductivity
[]
[flux_right]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 3
diffusivity = thermal_conductivity
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = 'fuel'
[]
[sphere_convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = temp
boundary = '4' # outer RVP
T_fluid = ${sphere_outer_Tinf}
htc = ${sphere_outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(sphere_convective_out - ptot) / ptot'
pp_names = 'sphere_convective_out ptot'
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '2 3'
variable = temp
[]
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_sphere_mortar.i)
sphere_outer_htc = 10 # W/m^2/K
sphere_outer_Tinf = 300 # K
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Problem]
coord_type = RZ
kernel_coverage_check = false
material_coverage_check = false
[]
[Mesh]
[file]
type = FileMeshGenerator
file = cyl2D.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '2'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '3'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Functions]
[temp]
type = PiecewiseLinear
x = '0 1'
y = '100 200'
[]
[]
[Variables]
[temp]
initial_condition = 500
[]
[lm]
order = SECOND
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[AuxVariables]
[power_density]
block = 'fuel'
initial_condition = 50e3
[]
[]
[Kernels]
[heat_conduction]
type = HeatConduction
variable = temp
block = '1 2'
[]
[heat_source]
type = CoupledForce
variable = temp
block = 'fuel'
v = power_density
[]
[]
[Materials]
[heat1]
type = HeatConductionMaterial
block = '1 2'
specific_heat = 1.0
thermal_conductivity = 34.6
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 2
primary_emissivity = 0.0
secondary_emissivity = 0.0
[]
[conduction]
type = GapFluxModelConduction
temperature = temp
boundary = 2
gap_conductivity = 5.0
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
primary_boundary = 3
primary_subdomain = 10000
secondary_boundary = 2
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
gap_geometry_type = SPHERE
sphere_origin = '0 0 0'
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = temp
boundary = '4' # outer RPV
coefficient = ${sphere_outer_htc}
T_infinity = ${sphere_outer_Tinf}
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
dt = 1
dtmin = 0.01
end_time = 1
nl_rel_tol = 1e-12
nl_abs_tol = 1e-7
[]
[Outputs]
exodus = true
csv = true
[Console]
type = Console
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '2 3'
variable = temp
[]
[]
[Postprocessors]
[temp_left]
type = SideAverageValue
boundary = 2
variable = temp
[]
[temp_right]
type = SideAverageValue
boundary = 3
variable = temp
[]
[flux_left]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 2
diffusivity = thermal_conductivity
[]
[flux_right]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 3
diffusivity = thermal_conductivity
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = 'fuel'
[]
[sphere_convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = temp
boundary = '4' # outer RVP
T_fluid = ${sphere_outer_Tinf}
htc = ${sphere_outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(sphere_convective_out - ptot) / ptot'
pp_names = 'sphere_convective_out ptot'
[]
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/gap_heat_transfer_3D_mortar.i)
outer_htc = 10 # W/m^2/K
outer_Tinf = 300 # K
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Mesh]
[left_block]
type = GeneratedMeshGenerator
dim = 3
nx = 3
ny = 6
nz = 6
xmin = -1
xmax = -0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
elem_type = HEX27
[]
[left_block_sidesets]
type = RenameBoundaryGenerator
input = left_block
old_boundary = '0 1 2 3 4 5'
new_boundary = 'left_bottom left_back left_right left_front left_left left_top'
[]
[left_block_id]
type = SubdomainIDGenerator
input = left_block_sidesets
subdomain_id = 1
[]
[right_block]
type = GeneratedMeshGenerator
dim = 3
nx = 4
ny = 8
nz = 8
xmin = 0.5
xmax = 1
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
elem_type = HEX27
[]
[right_block_sidesets]
type = RenameBoundaryGenerator
input = right_block
old_boundary = '0 1 2 3 4 5'
# new_boundary = 'right_bottom right_back right_right right_front right_left right_top'
new_boundary = '100 101 102 103 104 105'
[]
[right_block_sidesets_rename]
type = RenameBoundaryGenerator
input = right_block_sidesets
old_boundary = '100 101 102 103 104 105'
new_boundary = 'right_bottom right_back right_right right_front right_left right_top'
[]
[right_block_id]
type = SubdomainIDGenerator
input = right_block_sidesets_rename
subdomain_id = 2
[]
[combined_mesh]
type = MeshCollectionGenerator
inputs = 'left_block_id right_block_id'
[]
[left_lower]
type = LowerDBlockFromSidesetGenerator
input = combined_mesh
sidesets = 'left_right'
new_block_id = '10001'
new_block_name = 'secondary_lower'
[]
[right_lower]
type = LowerDBlockFromSidesetGenerator
input = left_lower
sidesets = 'right_left'
new_block_id = '10000'
new_block_name = 'primary_lower'
[]
[]
[Functions]
[temp]
type = PiecewiseLinear
x = '0 1'
y = '100 200'
[]
[]
[Variables]
[temp]
initial_condition = 500
[]
[lm]
order = SECOND
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[AuxVariables]
[power_density]
block = 1
initial_condition = 50e3
[]
[]
[Kernels]
[heat_conduction]
type = HeatConduction
variable = temp
block = '1 2'
[]
[heat_source]
type = CoupledForce
variable = temp
block = '1'
v = power_density
[]
[]
[Materials]
[heat1]
type = HeatConductionMaterial
block = '1 2'
specific_heat = 1.0
thermal_conductivity = 34.6
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
T = temp
boundary = 'left_right'
primary_emissivity = 0.0
secondary_emissivity = 0.0
[]
[conduction]
type = GapFluxModelConduction
T = temp
boundary = 'left_right'
gap_conductivity = 5.0
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
primary_boundary = 'right_left'
primary_subdomain = 'primary_lower'
secondary_boundary = 'left_right'
secondary_subdomain = 'secondary_lower'
gap_flux_models = 'radiation conduction'
gap_geometry_type = PLATE
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = temp
boundary = 'right_right' # outer RPV
coefficient = ${outer_htc}
T_infinity = ${outer_Tinf}
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
dt = 1
dtmin = 0.01
end_time = 1
nl_rel_tol = 1e-12
nl_abs_tol = 1e-8
[]
[Outputs]
exodus = true
csv = true
[Console]
type = Console
[]
[]
[Postprocessors]
[temp_left]
type = SideAverageValue
boundary = 'left_right'
variable = temp
[]
[temp_right]
type = SideAverageValue
boundary = 'right_left'
variable = temp
[]
[flux_left]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 'left_right'
diffusivity = thermal_conductivity
[]
[flux_right]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 'right_left'
diffusivity = thermal_conductivity
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = 1
[]
[convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = temp
boundary = 'right_right' # outer RVP
T_fluid = ${outer_Tinf}
htc = ${outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(convective_out - ptot) / ptot'
pp_names = 'convective_out ptot'
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = 'left_right right_left'
variable = temp
[]
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '101'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '100'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = radiation
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar_action/modular_gap_heat_transfer_mortar_displaced_radiation_conduction_action_existing_UOs.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[MortarGapHeatTransfer]
[mortar_heat_transfer]
temperature = temp
boundary = 100
use_displaced_mesh = true
primary_boundary = 100
secondary_boundary = 101
user_created_gap_flux_models = 'radiation_uo conduction_uo'
[]
[]
[UserObjects]
[radiation_uo]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[conduction_uo]
type = GapFluxModelConduction
temperature = temp
boundary = 100
gap_conductivity = 0.02
use_displaced_mesh = true
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
csv = true
[exodus]
type = Exodus
show = 'temp'
[]
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation_conduction_separate.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '101'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '100'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[lm_conduction]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[conduction]
type = GapFluxModelConduction
temperature = temp
boundary = 100
gap_conductivity = 0.02
use_displaced_mesh = true
[]
[]
[Constraints]
[ced_radiation]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = 'radiation'
[]
[ced_conduction]
type = ModularGapConductanceConstraint
variable = lm_conduction
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = 'conduction'
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/modular_gap_heat_transfer_mortar_displaced_radiation_conduction.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '101'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '100'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[conduction]
type = GapFluxModelConduction
temperature = temp
boundary = 100
gap_conductivity = 0.02
use_displaced_mesh = true
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_sphere_mortar_error.i)
sphere_outer_htc = 10 # W/m^2/K
sphere_outer_Tinf = 300 # K
[GlobalParams]
order = SECOND
family = LAGRANGE
[]
[Problem]
coord_type = RZ
kernel_coverage_check = false
material_coverage_check = false
[]
[Mesh]
[file]
type = FileMeshGenerator
file = cyl2D.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '2'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '3'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Functions]
[temp]
type = PiecewiseLinear
x = '0 1'
y = '100 200'
[]
[]
[Variables]
[temp]
initial_condition = 500
[]
[lm]
order = SECOND
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[AuxVariables]
[power_density]
block = 'fuel'
initial_condition = 50e3
[]
[]
[Kernels]
[heat_conduction]
type = HeatConduction
variable = temp
block = '1 2'
[]
[heat_source]
type = CoupledForce
variable = temp
block = 'fuel'
v = power_density
[]
[]
[Materials]
[heat1]
type = HeatConductionMaterial
block = '1 2'
specific_heat = 1.0
thermal_conductivity = 34.6
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 2
primary_emissivity = 0.0
secondary_emissivity = 0.0
[]
[conduction]
type = GapFluxModelConduction
temperature = temp
boundary = 2
gap_conductivity = 5.0
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
primary_boundary = 3
primary_subdomain = 10000
secondary_boundary = 2
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
gap_geometry_type = SPHERE
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = temp
boundary = '4' # outer RPV
coefficient = ${sphere_outer_htc}
T_infinity = ${sphere_outer_Tinf}
[]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
dt = 1
dtmin = 0.01
end_time = 1
nl_rel_tol = 1e-12
nl_abs_tol = 1e-7
[]
[Outputs]
exodus = true
csv = true
[Console]
type = Console
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '2 3'
variable = temp
[]
[]
[Postprocessors]
[temp_left]
type = SideAverageValue
boundary = 2
variable = temp
[]
[temp_right]
type = SideAverageValue
boundary = 3
variable = temp
[]
[flux_left]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 2
diffusivity = thermal_conductivity
[]
[flux_right]
type = SideDiffusiveFluxIntegral
variable = temp
boundary = 3
diffusivity = thermal_conductivity
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = 'fuel'
[]
[sphere_convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = temp
boundary = '4' # outer RVP
T_fluid = ${sphere_outer_Tinf}
htc = ${sphere_outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(sphere_convective_out - ptot) / ptot'
pp_names = 'sphere_convective_out ptot'
[]
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_cylinder_mortar.i)
rpv_core_gap_size = 0.15
core_outer_radius = 2
rpv_inner_radius = ${fparse 2 + rpv_core_gap_size}
rpv_outer_radius = ${fparse 2.5 + rpv_core_gap_size}
rpv_outer_htc = 10 # W/m^2/K
rpv_outer_Tinf = 300 # K
core_blocks = '1'
rpv_blocks = '3'
[Mesh]
[core_gap_rpv]
type = ConcentricCircleMeshGenerator
num_sectors = 10
radii = '${core_outer_radius} ${rpv_inner_radius} ${rpv_outer_radius}'
rings = '2 1 2'
has_outer_square = false
preserve_volumes = true
portion = full
[]
[rename_core_bdy]
type = SideSetsBetweenSubdomainsGenerator
input = core_gap_rpv
primary_block = 1
paired_block = 2
new_boundary = 'core_outer'
[]
[rename_inner_rpv_bdy]
type = SideSetsBetweenSubdomainsGenerator
input = rename_core_bdy
primary_block = 3
paired_block = 2
new_boundary = 'rpv_inner'
[]
[2d_mesh]
type = BlockDeletionGenerator
input = rename_inner_rpv_bdy
block = 2
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = 'rpv_inner'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = 2d_mesh
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = 'core_outer'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Variables]
[Tsolid]
initial_condition = 500
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Kernels]
[heat_source]
type = CoupledForce
variable = Tsolid
block = '${core_blocks}'
v = power_density
[]
[heat_conduction]
type = HeatConduction
variable = Tsolid
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = Tsolid
boundary = 'outer' # outer RPV
coefficient = ${rpv_outer_htc}
T_infinity = ${rpv_outer_Tinf}
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = Tsolid
boundary = 'rpv_inner'
primary_emissivity = 0.8
secondary_emissivity = 0.8
[]
[conduction]
type = GapFluxModelConduction
temperature = Tsolid
boundary = 'rpv_inner'
gap_conductivity = 0.1
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = Tsolid
primary_boundary = 'core_outer'
primary_subdomain = 10000
secondary_boundary = 'rpv_inner'
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
gap_geometry_type = 'CYLINDER'
cylinder_axis_point_1 = '0 0 0'
cylinder_axis_point_2 = '0 0 5'
[]
[]
[AuxVariables]
[power_density]
block = '${core_blocks}'
initial_condition = 50e3
[]
[]
[Materials]
[simple_mat]
type = HeatConductionMaterial
thermal_conductivity = 34.6 # W/m/K
[]
[]
[Postprocessors]
[Tcore_avg]
type = ElementAverageValue
variable = Tsolid
block = '${core_blocks}'
[]
[Tcore_max]
type = ElementExtremeValue
value_type = max
variable = Tsolid
block = '${core_blocks}'
[]
[Tcore_min]
type = ElementExtremeValue
value_type = min
variable = Tsolid
block = '${core_blocks}'
[]
[Trpv_avg]
type = ElementAverageValue
variable = Tsolid
block = '${rpv_blocks}'
[]
[Trpv_max]
type = ElementExtremeValue
value_type = max
variable = Tsolid
block = '${rpv_blocks}'
[]
[Trpv_min]
type = ElementExtremeValue
value_type = min
variable = Tsolid
block = '${rpv_blocks}'
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = '${core_blocks}'
[]
[rpv_convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = Tsolid
boundary = 'outer' # outer RVP
T_fluid = ${rpv_outer_Tinf}
htc = ${rpv_outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(rpv_convective_out - ptot) / ptot'
pp_names = 'rpv_convective_out ptot'
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = 'rpv_inner core_outer'
variable = 'Tsolid'
[]
[]
[Executioner]
type = Steady
petsc_options = '-snes_converged_reason -pc_svd_monitor'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package -mat_mffd_err -pc_factor_shift_type '
'-pc_factor_shift_amount'
petsc_options_value = ' lu superlu_dist 1e-5 NONZERO '
'1e-15'
snesmf_reuse_base = false
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
l_max_its = 100
line_search = none
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar/large_gap_heat_transfer_test_rz_cylinder_mortar.i)
rpv_core_gap_size = 0.2
core_outer_radius = 2
rpv_inner_radius = '${fparse 2 + rpv_core_gap_size}'
rpv_outer_radius = '${fparse 2.5 + rpv_core_gap_size}'
rpv_width = '${fparse rpv_outer_radius - rpv_inner_radius}'
rpv_outer_htc = 10 # W/m^2/K
rpv_outer_Tinf = 300 # K
core_blocks = '1'
rpv_blocks = '3'
[Mesh]
[gmg]
type = CartesianMeshGenerator
dim = 2
dx = '${core_outer_radius} ${rpv_core_gap_size} ${rpv_width}'
ix = '400 1 100'
dy = 1
iy = '5'
[]
[set_block_id1]
type = SubdomainBoundingBoxGenerator
input = gmg
bottom_left = '0 0 0'
top_right = '${core_outer_radius} 1 0'
block_id = 1
location = INSIDE
[]
[rename_core_bdy]
type = SideSetsBetweenSubdomainsGenerator
input = set_block_id1
primary_block = 1
paired_block = 0
new_boundary = 'core_outer'
[]
[set_block_id3]
type = SubdomainBoundingBoxGenerator
input = rename_core_bdy
bottom_left = '${rpv_inner_radius} 0 0'
top_right = '${rpv_outer_radius} 1 0'
block_id = 3
location = INSIDE
[]
[rename_inner_rpv_bdy]
type = SideSetsBetweenSubdomainsGenerator
input = set_block_id3
primary_block = 3
paired_block = 0
new_boundary = 'rpv_inner'
[]
# comment out for test without gap
[2d_mesh]
type = BlockDeletionGenerator
input = rename_inner_rpv_bdy
block = 0
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = 'rpv_inner'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = 2d_mesh
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = 'core_outer'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
coord_type = RZ
[]
[Variables]
[Tsolid]
initial_condition = 500
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Kernels]
[heat_source]
type = CoupledForce
variable = Tsolid
block = '${core_blocks}'
v = power_density
[]
[heat_conduction]
type = HeatConduction
variable = Tsolid
[]
[]
[BCs]
[RPV_out_BC] # k \nabla T = h (T- T_inf) at RPV outer boundary
type = ConvectiveFluxFunction # (Robin BC)
variable = Tsolid
boundary = 'right' # outer RPV
coefficient = ${rpv_outer_htc}
T_infinity = ${rpv_outer_Tinf}
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = Tsolid
boundary = 'rpv_inner'
primary_emissivity = 0.8
secondary_emissivity = 0.8
[]
[conduction]
type = GapFluxModelConduction
temperature = Tsolid
boundary = 'rpv_inner'
gap_conductivity = 0.1
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = Tsolid
primary_boundary = 'core_outer'
primary_subdomain = 10000
secondary_boundary = 'rpv_inner'
secondary_subdomain = 10001
gap_flux_models = 'radiation conduction'
gap_geometry_type = 'CYLINDER'
[]
[]
[AuxVariables]
[power_density]
block = '${core_blocks}'
initial_condition = 50e3
[]
[]
[Materials]
[simple_mat]
type = HeatConductionMaterial
thermal_conductivity = 34.6 # W/m/K
[]
[]
[Postprocessors]
[Tcore_avg]
type = ElementAverageValue
variable = Tsolid
block = '${core_blocks}'
[]
[Tcore_max]
type = ElementExtremeValue
value_type = max
variable = Tsolid
block = '${core_blocks}'
[]
[Tcore_min]
type = ElementExtremeValue
value_type = min
variable = Tsolid
block = '${core_blocks}'
[]
[Trpv_avg]
type = ElementAverageValue
variable = Tsolid
block = '${rpv_blocks}'
[]
[Trpv_max]
type = ElementExtremeValue
value_type = max
variable = Tsolid
block = '${rpv_blocks}'
[]
[Trpv_min]
type = ElementExtremeValue
value_type = min
variable = Tsolid
block = '${rpv_blocks}'
[]
[ptot]
type = ElementIntegralVariablePostprocessor
variable = power_density
block = '${core_blocks}'
[]
[rpv_convective_out]
type = ConvectiveHeatTransferSideIntegral
T_solid = Tsolid
boundary = 'right' # outer RVP
T_fluid = ${rpv_outer_Tinf}
htc = ${rpv_outer_htc}
[]
[heat_balance] # should be equal to 0 upon convergence
type = ParsedPostprocessor
function = '(rpv_convective_out - ptot) / ptot'
pp_names = 'rpv_convective_out ptot'
[]
[flux_from_core] # converges to ptot as the mesh is refined
type = SideDiffusiveFluxIntegral
variable = Tsolid
boundary = core_outer
diffusivity = thermal_conductivity
[]
[flux_into_rpv] # converges to rpv_convective_out as the mesh is refined
type = SideDiffusiveFluxIntegral
variable = Tsolid
boundary = rpv_inner
diffusivity = thermal_conductivity
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = 'rpv_inner core_outer'
variable = Tsolid
[]
[]
[Executioner]
type = Steady
petsc_options = '-snes_converged_reason -pc_svd_monitor'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package -mat_mffd_err -pc_factor_shift_type '
'-pc_factor_shift_amount'
petsc_options_value = ' lu superlu_dist 1e-5 NONZERO '
'1e-15'
snesmf_reuse_base = false
nl_rel_tol = 1e-10
nl_abs_tol = 1e-10
l_max_its = 100
line_search = none
[]
[Outputs]
exodus = false
csv = true
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar_action/modular_gap_heat_transfer_mortar_displaced_conduction_UOs_function.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[]
[Functions]
[gc_function]
type = PiecewiseLinear
x = '-10000 10000'
y = '0.02 0.02'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[MortarGapHeatTransfer]
[mortar_heat_transfer]
temperature = temp
boundary = 100
use_displaced_mesh = true
primary_boundary = 100
secondary_boundary = 101
user_created_gap_flux_models = 'radiation_uo conduction_uo'
[]
[]
[UserObjects]
[radiation_uo]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[conduction_uo]
type = GapFluxModelConduction
temperature = temp
boundary = 100
gap_conductivity_function = gc_function
gap_conductivity_function_variable = temp
gap_conductivity = 1.0
use_displaced_mesh = true
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
csv = true
[exodus]
type = Exodus
show = 'temp'
[]
[]
(modules/heat_conduction/test/tests/gap_heat_transfer_mortar_action/modular_gap_heat_transfer_mortar_displaced_radiation_conduction_verbose.i)
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[file]
type = FileMeshGenerator
file = 2blk-gap.e
[]
[secondary]
type = LowerDBlockFromSidesetGenerator
sidesets = '101'
new_block_id = 10001
new_block_name = 'secondary_lower'
input = file
[]
[primary]
type = LowerDBlockFromSidesetGenerator
sidesets = '100'
new_block_id = 10000
new_block_name = 'primary_lower'
input = secondary
[]
allow_renumbering = false
[]
[Problem]
kernel_coverage_check = false
material_coverage_check = false
[]
[Variables]
[temp]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_x]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[disp_y]
order = FIRST
family = LAGRANGE
block = '1 2'
[]
[lm]
order = FIRST
family = LAGRANGE
block = 'secondary_lower'
[]
[]
[Materials]
[left]
type = ADHeatConductionMaterial
block = 1
thermal_conductivity = 0.01
specific_heat = 1
[]
[right]
type = ADHeatConductionMaterial
block = 2
thermal_conductivity = 0.005
specific_heat = 1
[]
[]
[Kernels]
[hc_displaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = true
block = '1'
[]
[hc_undisplaced_block]
type = ADHeatConduction
variable = temp
use_displaced_mesh = false
block = '2'
[]
[disp_x]
type = Diffusion
variable = disp_x
block = '1 2'
[]
[disp_y]
type = Diffusion
variable = disp_y
block = '1 2'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
temperature = temp
boundary = 100
primary_emissivity = 1.0
secondary_emissivity = 1.0
use_displaced_mesh = true
[]
[conduction]
type = GapFluxModelConduction
temperature = temp
boundary = 100
gap_conductivity = 0.02
use_displaced_mesh = true
[]
[]
[Constraints]
[ced]
type = ModularGapConductanceConstraint
variable = lm
secondary_variable = temp
use_displaced_mesh = true
primary_boundary = 100
primary_subdomain = 10000
secondary_boundary = 101
secondary_subdomain = 10001
correct_edge_dropping = true
gap_flux_models = 'radiation conduction'
[]
[]
[BCs]
[left]
type = DirichletBC
variable = temp
boundary = 'left'
value = 100
[]
[right]
type = DirichletBC
variable = temp
boundary = 'right'
value = 0
[]
[left_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'left'
value = .1
[]
[right_disp_x]
type = DirichletBC
preset = false
variable = disp_x
boundary = 'right'
value = 0
[]
[bottom_disp_y]
type = DirichletBC
preset = false
variable = disp_y
boundary = 'bottom'
value = 0
[]
[]
[Preconditioning]
[fmp]
type = SMP
full = true
solve_type = 'NEWTON'
[]
[]
[Executioner]
type = Steady
nl_rel_tol = 1e-11
nl_abs_tol = 1.0e-10
[]
[VectorPostprocessors]
[NodalTemperature]
type = NodalValueSampler
sort_by = id
boundary = '100 101'
variable = 'temp'
[]
[]
[Outputs]
csv = true
[exodus]
type = Exodus
show = 'temp'
[]
[]
(modules/combined/test/tests/gap_heat_transfer_mortar/small-2d/multi_component_mortar_thermal_conduction.i)
## Units in the input file: m-Pa-s-K
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[left_rectangle]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 10
xmax = 1
ymin = 0
ymax = 0.5
boundary_name_prefix = moving_block
[]
[left_block]
type = SubdomainIDGenerator
input = left_rectangle
subdomain_id = 1
[]
[right_rectangle]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 10
xmin = 1.
xmax = 2.
ymin = 0
ymax = 0.5
boundary_name_prefix = fixed_block
boundary_id_offset = 4
[]
[right_block]
type = SubdomainIDGenerator
input = right_rectangle
subdomain_id = 2
[]
[two_blocks]
type = MeshCollectionGenerator
inputs = 'left_block right_block'
[]
[block_rename]
type = RenameBlockGenerator
input = two_blocks
old_block = '1 2'
new_block = 'left_block right_block'
[]
patch_update_strategy = iteration
[]
[Variables]
[disp_x]
block = 'left_block right_block'
[]
[disp_y]
block = 'left_block right_block'
[]
[temperature]
initial_condition = 525.0
[]
[temperature_interface_lm]
block = 'interface_secondary_subdomain'
[]
[]
[Modules]
[TensorMechanics/Master]
[steel]
strain = SMALL
add_variables = false
use_automatic_differentiation = true
additional_generate_output = 'vonmises_stress'
additional_material_output_family = 'MONOMIAL'
additional_material_output_order = 'FIRST'
block = 'left_block'
[]
[aluminum]
strain = SMALL
add_variables = false
use_automatic_differentiation = true
additional_generate_output = 'vonmises_stress'
additional_material_output_family = 'MONOMIAL'
additional_material_output_order = 'FIRST'
block = 'right_block'
[]
[]
[]
[Kernels]
[HeatDiff_steel]
type = ADHeatConduction
variable = temperature
thermal_conductivity = steel_thermal_conductivity
block = 'left_block'
[]
[HeatTdot_steel]
type = ADHeatConductionTimeDerivative
variable = temperature
specific_heat = steel_heat_capacity
density_name = steel_density
block = 'left_block'
[]
[HeatDiff_aluminum]
type = ADHeatConduction
variable = temperature
thermal_conductivity = aluminum_thermal_conductivity
block = 'right_block'
[]
[HeatTdot_aluminum]
type = ADHeatConductionTimeDerivative
variable = temperature
specific_heat = aluminum_heat_capacity
density_name = aluminum_density
block = 'right_block'
[]
[]
[BCs]
[fixed_bottom_edge]
type = ADDirichletBC
variable = disp_y
value = 0
boundary = 'moving_block_bottom fixed_block_bottom'
[]
[fixed_outer_edge]
type = ADDirichletBC
variable = disp_x
value = 0
boundary = 'fixed_block_right'
[]
[displacement_left_block]
type = ADFunctionDirichletBC
variable = disp_x
function = 'if(t<61, 2.0e-7, -2.0e-8*(t-60))'
boundary = 'moving_block_left'
[]
[temperature_left]
type = ADDirichletBC
variable = temperature
value = 800
boundary = 'moving_block_left'
[]
[temperature_right]
type = ADDirichletBC
variable = temperature
value = 250
boundary = 'fixed_block_right'
[]
[]
[Contact]
[interface]
primary = moving_block_right
secondary = fixed_block_left
model = frictionless
formulation = mortar
correct_edge_dropping = true
[]
[]
[Constraints]
[thermal_contact]
type = ModularGapConductanceConstraint
variable = temperature_interface_lm
secondary_variable = temperature
primary_boundary = moving_block_right
primary_subdomain = interface_primary_subdomain
secondary_boundary = fixed_block_left
secondary_subdomain = interface_secondary_subdomain
gap_flux_models = 'radiation closed'
use_displaced_mesh = true
[]
[]
[Materials]
[steel_elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1.93e11 #in Pa, 193 GPa, stainless steel 304
poissons_ratio = 0.29
block = 'left_block'
[]
[steel_stress]
type = ADComputeLinearElasticStress
block = 'left_block'
[]
[steel_thermal_properties]
type = ADGenericConstantMaterial
prop_names = 'steel_density steel_thermal_conductivity steel_heat_capacity'
prop_values = ' 8e3 16.2 0.5' ## for stainless steel 304
block = 'left_block'
[]
[aluminum_elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 6.8e10 #in Pa, 68 GPa, aluminum
poissons_ratio = 0.36
block = 'right_block'
[]
[aluminum_stress]
type = ADComputeLinearElasticStress
block = 'right_block'
[]
[aluminum_thermal_properties]
type = ADGenericConstantMaterial
prop_names = 'aluminum_density aluminum_thermal_conductivity aluminum_heat_capacity'
prop_values = ' 2.7e3 210 0.9'
block = 'right_block'
[]
[]
[UserObjects]
[radiation]
type = GapFluxModelRadiation
secondary_emissivity = 0.25
primary_emissivity = 0.6
temperature = temperature
boundary = moving_block_right
[]
[closed]
type = GapFluxModelPressureDependentConduction
primary_conductivity = steel_thermal_conductivity
secondary_conductivity = aluminum_thermal_conductivity
temperature = temperature
contact_pressure = interface_normal_lm
primary_hardness = 1.0
secondary_hardness = 1.0
boundary = moving_block_right
[]
[]
[Postprocessors]
[steel_pt_interface_temperature]
type = NodalVariableValue
nodeid = 245
variable = temperature
[]
[aluminum_pt_interface_temperature]
type = NodalVariableValue
nodeid = 657
variable = temperature
[]
[aluminum_element_interface_stress]
type = ElementalVariableValue
variable = vonmises_stress
elementid = 560
[]
[interface_heat_flux_steel]
type = ADSideDiffusiveFluxAverage
variable = temperature
boundary = moving_block_right
diffusivity = steel_thermal_conductivity
[]
[interface_heat_flux_aluminum]
type = ADSideDiffusiveFluxAverage
variable = temperature
boundary = fixed_block_left
diffusivity = aluminum_thermal_conductivity
[]
[]
[Executioner]
type = Transient
solve_type = NEWTON
automatic_scaling = false
line_search = 'none'
# mortar contact solver options
petsc_options = '-snes_converged_reason -pc_svd_monitor'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_type'
petsc_options_value = ' lu superlu_dist'
snesmf_reuse_base = false
nl_rel_tol = 1e-10
nl_max_its = 20
l_max_its = 50
dt = 60
end_time = 120
[]
[Outputs]
csv = true
perf_graph = true
[]