GapFluxModelConduction

Gap flux model for varying gap conductance using a coupled variable for temperature

Description

GapFluxModelConduction computes a conductive heat flux across a gap following the existing implementation of radiation physics. It is used by ModularGapConductanceConstraint.md.

The user is required to select the appropriate gap_geometry_type parameter (PLATE, CYLINDER, or SPHERE) for the model geometry in ModularGapConductanceConstraint.md. Two-dimensional Cartesian geometries are not restricted to be in or parallel to the X-Y coordinate plane.

Input Parameters

  • 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

  • temperatureThe name of the temperature variable

    C++ Type:std::vector<VariableName>

    Controllable:No

    Description:The name of the temperature variable

Required Parameters

  • gap_conductivity1Gap conductivity value

    Default:1

    C++ Type:double

    Controllable:No

    Description:Gap conductivity value

  • gap_conductivity_functionThermal conductivity of the gap material as a function. Multiplied by gap_conductivity.

    C++ Type:FunctionName

    Controllable:No

    Description:Thermal conductivity of the gap material as a function. Multiplied by gap_conductivity.

  • gap_conductivity_function_variableVariable to be used in the gap_conductivity_function in place of time

    C++ Type:std::vector<VariableName>

    Controllable:No

    Description:Variable to be used in the gap_conductivity_function in place of time

  • min_gap1e-06A minimum gap (denominator) size

    Default:1e-06

    C++ Type:double

    Controllable:No

    Description:A minimum gap (denominator) size

  • min_gap_order0Order of the Taylor expansion below min_gap for GapFluxModelConductionBase

    Default:0

    C++ Type:unsigned int

    Controllable:No

    Description:Order of the Taylor expansion below min_gap for GapFluxModelConductionBase

  • prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.

    C++ Type:MaterialPropertyName

    Controllable:No

    Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.

Optional Parameters

  • allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

    Default:False

    C++ Type:bool

    Controllable:No

    Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector<std::string>

    Controllable:No

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Controllable:Yes

    Description:Set the enabled status of the MooseObject.

  • execution_order_group0Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.

    Default:0

    C++ Type:int

    Controllable:No

    Description:Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.

  • 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

References

No citations exist within this document.