GrayLambertSurfaceRadiationPP

This postprocessor allows to extract radiosity, heat flux density, and temperature from the GrayLambertSurfaceRadiationBase object.

Description

This postprocessor extracts radiosity, heat flux density, or temperature from the GrayLambertSurfaceRadiation userobject. The boundary from which this information is extracted needs to be specified.

Example Input File Syntax

[Mesh<<<{"href": "../../syntax/Mesh/index.html"}>>>]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 2
  nx = 1
  ny = 1
[]

[Problem<<<{"href": "../../syntax/Problem/index.html"}>>>]
  kernel_coverage_check = false
[]

[Variables<<<{"href": "../../syntax/Variables/index.html"}>>>]
  [./temperature]
    initial_condition<<<{"description": "Specifies a constant initial condition for this variable"}>>> = 300
  [../]
[]

[UserObjects<<<{"href": "../../syntax/UserObjects/index.html"}>>>]
  [./gray_lambert]
    type = ConstantViewFactorSurfaceRadiation<<<{"description": "ConstantViewFactorSurfaceRadiation computes radiative heat transfer between side sets and the view factors are provided in the input file", "href": "../userobjects/ConstantViewFactorSurfaceRadiation.html"}>>>
    boundary<<<{"description": "The list of boundary IDs from the mesh where this object applies"}>>> = 'bottom top left right'
    fixed_temperature_boundary<<<{"description": "The list of boundary IDs from the mesh with fixed temperatures."}>>> = 'bottom top'
    fixed_boundary_temperatures<<<{"description": "The temperatures of the fixed boundary."}>>> = '550 300'
    adiabatic_boundary<<<{"description": "The list of boundary IDs from the mesh that are adiabatic."}>>> = 'right left'
    emissivity<<<{"description": "Emissivities for each boundary."}>>> = '1 0.75 0.75 0.75'
    temperature<<<{"description": "The coupled temperature variable."}>>> = temperature
    view_factors<<<{"description": "The view factors from sideset i to sideset j."}>>> = '0 0.123 0.6928 0.1841;
                    0.123 0 0.1841 0.6928;
                    0.2771 0.0736 0.4458 0.2035;
                    0.0736 0.2771 0.2035 0.4458'
  [../]
[]

[VectorPostprocessors<<<{"href": "../../syntax/VectorPostprocessors/index.html"}>>>]
  [./lambert_vpp]
    type = SurfaceRadiationVectorPostprocessor<<<{"description": "VectorPostprocessor for accessing information stored in surface radiation user object", "href": "../vectorpostprocessors/SurfaceRadiationVectorPostprocessor.html"}>>>
    surface_radiation_object_name<<<{"description": "Name of the GrayLambertSurfaceRadiationBase UO"}>>> = gray_lambert
    information<<<{"description": "The type of information to obtain from surface radiation user object"}>>> = 'temperature emissivity radiosity heat_flux_density'
  [../]

  [./view_factors]
    type = ViewfactorVectorPostprocessor<<<{"description": "VectorPostprocessor for accessing view factors from GrayLambertSurfaceRadiationBase UO", "href": "../vectorpostprocessors/ViewfactorVectorPostprocessor.html"}>>>
    surface_radiation_object_name<<<{"description": "Name of the GrayLambertSurfaceRadiationBase UO"}>>> = gray_lambert
  [../]
[]

[Postprocessors<<<{"href": "../../syntax/Postprocessors/index.html"}>>>]
  [./heat_flux_density_bottom]
    type = GrayLambertSurfaceRadiationPP<<<{"description": "This postprocessor allows to extract radiosity, heat flux density, and temperature from the GrayLambertSurfaceRadiationBase object.", "href": "GrayLambertSurfaceRadiationPP.html"}>>>
    surface_radiation_object_name<<<{"description": "Name of the GrayLambertSurfaceRadiationBase UO"}>>> = gray_lambert
    return_type<<<{"description": "Requested return type: RADIOSITY | HEAT_FLUX_DENSITY | TEMPERATURE"}>>> = HEAT_FLUX_DENSITY
    boundary<<<{"description": "The boundary of interest."}>>> = bottom
  [../]

  [./temperature_left]
    type = GrayLambertSurfaceRadiationPP<<<{"description": "This postprocessor allows to extract radiosity, heat flux density, and temperature from the GrayLambertSurfaceRadiationBase object.", "href": "GrayLambertSurfaceRadiationPP.html"}>>>
    surface_radiation_object_name<<<{"description": "Name of the GrayLambertSurfaceRadiationBase UO"}>>> = gray_lambert
    return_type<<<{"description": "Requested return type: RADIOSITY | HEAT_FLUX_DENSITY | TEMPERATURE"}>>> = TEMPERATURE
    boundary<<<{"description": "The boundary of interest."}>>> = left
  [../]

  [./temperature_right]
    type = GrayLambertSurfaceRadiationPP<<<{"description": "This postprocessor allows to extract radiosity, heat flux density, and temperature from the GrayLambertSurfaceRadiationBase object.", "href": "GrayLambertSurfaceRadiationPP.html"}>>>
    surface_radiation_object_name<<<{"description": "Name of the GrayLambertSurfaceRadiationBase UO"}>>> = gray_lambert
    return_type<<<{"description": "Requested return type: RADIOSITY | HEAT_FLUX_DENSITY | TEMPERATURE"}>>> = TEMPERATURE
    boundary<<<{"description": "The boundary of interest."}>>> = right
  [../]

  [./brightness_top]
    type = GrayLambertSurfaceRadiationPP<<<{"description": "This postprocessor allows to extract radiosity, heat flux density, and temperature from the GrayLambertSurfaceRadiationBase object.", "href": "GrayLambertSurfaceRadiationPP.html"}>>>
    surface_radiation_object_name<<<{"description": "Name of the GrayLambertSurfaceRadiationBase UO"}>>> = gray_lambert
    return_type<<<{"description": "Requested return type: RADIOSITY | HEAT_FLUX_DENSITY | TEMPERATURE"}>>> = RADIOSITY
    boundary<<<{"description": "The boundary of interest."}>>> = top
  [../]
[]

[Executioner<<<{"href": "../../syntax/Executioner/index.html"}>>>]
  type = Transient
  num_steps = 1
[]
(moose/modules/heat_transfer/test/tests/gray_lambert_radiator/gray_lambert_cavity.i)

Input Parameters

  • boundaryThe boundary of interest.

    C++ Type:BoundaryName

    Controllable:No

    Description:The boundary of interest.

  • surface_radiation_object_nameName of the GrayLambertSurfaceRadiationBase UO

    C++ Type:UserObjectName

    Controllable:No

    Description:Name of the GrayLambertSurfaceRadiationBase UO

Required Parameters

  • return_typeHEAT_FLUX_DENSITYRequested return type: RADIOSITY | HEAT_FLUX_DENSITY | TEMPERATURE

    Default:HEAT_FLUX_DENSITY

    C++ Type:MooseEnum

    Options:RADIOSITY, HEAT_FLUX_DENSITY, TEMPERATURE

    Controllable:No

    Description:Requested return type: RADIOSITY | HEAT_FLUX_DENSITY | TEMPERATURE

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).

  • execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.

    Default:TIMESTEP_END

    C++ Type:ExecFlagEnum

    Options:NONE, INITIAL, LINEAR, NONLINEAR_CONVERGENCE, NONLINEAR, POSTCHECK, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, FINAL, CUSTOM, TRANSFER

    Controllable:No

    Description:The list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.

  • 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

Execution Scheduling 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.

  • outputsVector of output names where you would like to restrict the output of variables(s) associated with this object

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

    Controllable:No

    Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object

  • 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

  • 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

References

No citations exist within this document.