HeatRateConvectionRZ

This post-processor computes the heat rate $var element = document.getElementById("moose-equation-ee1c9925-4859-4f31-bad4-c8db8c9ab910");katex.render("\\dot{Q}", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$ of a boundary convective heat flux applied to a cylindrical heat structure via the HSBoundaryAmbientConvection component: $var element = document.getElementById("moose-equation-465475ab-55ee-4de4-9461-6f61847d8aa6");katex.render(" \\dot{Q} = \\int\\limits_A h (T_{amb} - T) dA \\,,", element, {displayMode:true,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$ where

$var element = document.getElementById("moose-equation-8f5e4b0a-5968-4513-ad2a-ad1ac2dfd0a6");katex.render("h", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$ is the convective heat transfer coefficient,
$var element = document.getElementById("moose-equation-32d6261b-b0cd-4cc4-9053-fb90ebd55dd8");katex.render("T_{amb}", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$ is the ambient temperature, and
$var element = document.getElementById("moose-equation-52ed2df6-fee8-48ed-86bb-9ea1f9c378af");katex.render("T", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$ is the temperature of the surface.

Input Parameters

TTemperature
C++ Type:std::vector<VariableName>
Controllable:No
Description:Temperature
T_ambientAmbient temperature function
C++ Type:FunctionName
Controllable:No
Description:Ambient temperature function
axis_dirThe direction of the axis of RZ symmetry.
C++ Type:libMesh::VectorValue<double>
Controllable:No
Description:The direction of the axis of RZ symmetry.
axis_pointA point on the axis of RZ symmetry.
C++ Type:libMesh::Point
Controllable:No
Description:A point on the axis of RZ symmetry.
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
htcAmbient heat transfer coefficient function
C++ Type:FunctionName
Controllable:No
Description:Ambient heat transfer coefficient function

Required Parameters

execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, TRANSFER, ALWAYS
Controllable:No
Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS.
offset0Radial offset of the axis of RZ symmetry.
Default:0
C++ Type:double
Controllable:No
Description:Radial offset of the axis of RZ symmetry.
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.
scale1Factor by which to scale integral, like when using a 2D domain
Default:1
C++ Type:double
Controllable:No
Description:Factor by which to scale integral, like when using a 2D domain

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
outputsVector of output names were 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 were 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

Input Files

(modules/thermal_hydraulics/test/tests/postprocessors/heat_rate_convection_rz/heat_rate_convection_rz.i)

(modules/thermal_hydraulics/test/tests/postprocessors/heat_rate_convection_rz/heat_rate_convection_rz.i)

# Tests the HeatRateConvectionRZ post-processor.

R_o = 0.2
thickness = 0.05
R_i = ${fparse R_o - thickness}

L = 3.0
S = ${fparse 2 * pi * R_o * L}

Q = 5000
T = 300
T_ambient = 350
htc = ${fparse Q / (S * (T_ambient - T))}

[HeatStructureMaterials]
  [region1-mat]
    type = SolidMaterialProperties
    k = 1
    cp = 1
    rho = 1
  []
[]

[Components]
  [heat_structure]
    type = HeatStructureCylindrical

    position = '1 2 3'
    orientation = '1 1 1'
    inner_radius = ${R_i}
    length = ${L}
    n_elems = 50

    names = 'region1'
    materials = 'region1-mat'
    widths = '${thickness}'
    n_part_elems = '5'

    initial_T = ${T}
  []
[]

[Postprocessors]
  [Q_pp]
    type = HeatRateConvectionRZ
    boundary = heat_structure:outer
    axis_point = '1 2 3'
    axis_dir = '1 1 1'
    htc = ${htc}
    T = T_solid
    T_ambient = ${T_ambient}
    execute_on = 'initial'
  []
[]

[Problem]
  solve = false
[]

[Executioner]
  type = Transient
  num_steps = 1
[]

[Outputs]
  file_base = 'heat_rate_convection_rz'
  [csv]
    type = CSV
    precision = 15
    execute_on = 'initial'
  []
[]

Input Parameters
Input Files

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