- boundaryThe list of boundary IDs from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundary IDs from the mesh where this object applies
- variableThe name of the variable that this residual object operates on
C++ Type:NonlinearVariableName
Controllable:No
Description:The name of the variable that this residual object operates on
GapHeatTransfer
Transfers heat across a gap between two surfaces dependent on the gap geometry specified.
Description
GapHeatTransfer calculates the amount of heat transferred across unmeshed gaps between two different blocks.
The quadrature option is generally recommended for most models. With this option, heat flux is computed and applied as an integrated boundary condition at the quadrature points on both faces. Use of the quadrature options generally gives smoother results, although there can be small differences in the heat flux on the two surfaces.
It is also important to use the appropriate gap_geometry_type parameter (PLATE, CYLINDER, or SPHERE) for the model geometry.
Two-dimensional Cartesian geometries are not restricted to be in or parallel to the X-Y coordinate plane.
Example Input syntax
[ThermalContact]
[./left_to_right]
emissivity_primary = 0
emissivity_secondary = 0
secondary = leftright
quadrature = true
primary = rightleft
variable = temp
type = GapHeatTransfer
[../]
[]Input Parameters
- appended_property_nameName appended to material properties to make them unique
C++ Type:std::string
Controllable:No
Description:Name appended to material properties to make them unique
- cylinder_axis_point_1Start point for line defining cylindrical axis
C++ Type:libMesh::VectorValue<double>
Controllable:No
Description:Start point for line defining cylindrical axis
- cylinder_axis_point_2End point for line defining cylindrical axis
C++ Type:libMesh::VectorValue<double>
Controllable:No
Description:End point for line defining cylindrical axis
- displacementsThe displacements appropriate for the simulation geometry and coordinate system
C++ Type:std::vector<VariableName>
Controllable:No
Description:The displacements appropriate for the simulation geometry and coordinate system
- gap_distanceDistance across the gap
C++ Type:std::vector<VariableName>
Controllable:No
Description:Distance across the gap
- gap_geometry_typeGap calculation type. Choices are: PLATE CYLINDER SPHERE
C++ Type:MooseEnum
Controllable:No
Description:Gap calculation type. Choices are: PLATE CYLINDER SPHERE
- gap_tempTemperature on the other side of the gap
C++ Type:std::vector<VariableName>
Controllable:No
Description:Temperature on the other side of the gap
- max_gap1e+06A maximum gap size
Default:1e+06
C++ Type:double
Controllable:No
Description:A maximum gap size
- min_gap1e-06A minimum gap size
Default:1e-06
C++ Type:double
Controllable:No
Description:A minimum gap size
- min_gap_order0Order of the Taylor expansion below min_gap
Default:0
C++ Type:unsigned int
Controllable:No
Description:Order of the Taylor expansion below min_gap
- orderFIRSTThe finite element order
Default:FIRST
C++ Type:MooseEnum
Controllable:No
Description:The finite element order
- paired_boundaryThe boundary to be penetrated
C++ Type:BoundaryName
Controllable:No
Description:The boundary to be penetrated
- 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.
- quadratureFalseWhether or not to do Quadrature point based gap heat transfer. If this is true then gap_distance and gap_temp should NOT be provided (and will be ignored) however paired_boundary IS then required.
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not to do Quadrature point based gap heat transfer. If this is true then gap_distance and gap_temp should NOT be provided (and will be ignored) however paired_boundary IS then required.
- sphere_originOrigin for sphere geometry
C++ Type:libMesh::VectorValue<double>
Controllable:No
Description:Origin for sphere geometry
- warningsFalseWhether to output warning messages concerning nodes not being found
Default:False
C++ Type:bool
Controllable:No
Description:Whether to output warning messages concerning nodes not being found
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
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
Controllable:No
Description:The tag for the vectors this Kernel should fill
Tagging 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.
- diag_save_inThe name of auxiliary variables to save this BC's diagonal jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
C++ Type:std::vector<AuxVariableName>
Controllable:No
Description:The name of auxiliary variables to save this BC's diagonal jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
- 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
- save_inThe name of auxiliary variables to save this BC's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
C++ Type:std::vector<AuxVariableName>
Controllable:No
Description:The name of auxiliary variables to save this BC's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
- 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.