PatchSidesetGenerator

Description

This mesh generator splits a given sideset (sideset parameter) into n pieces (n_patches). The pieces are referred to as patches. Patches are used for net radiation transfer method via view factors. The sideset is divided into n patches using partitioner that are available from libmesh. The new sidesets are named <old_side_name>_<id>, where <id> is a number running from 0 to n - 1.

Example Input Syntax

  [patch]
    type = PatchSidesetGenerator
    sideset = 0
    n_patches = 10
    input = cmg
  []

/opt/civet/build_0/moose/modules/heat_conduction/test/tests/generate_radiation_patch/generate_radiation_patch.i

[Mesh]
  type = MeshGeneratorMesh

  [cmg]
    type = GeneratedMeshGenerator
    dim = 3
    xmin = 0
    xmax = 1
    nx = 25
    ymin = 0
    ymax = 1
    ny = 25
    zmin = 0
    zmax = 1
    nz = 25
  []

  [patch]
    type = PatchSidesetGenerator
    sideset = 0
    n_patches = 10
    input = cmg
  []
[]

Input Parameters

inputThe mesh we want to modify
C++ Type:MeshGeneratorName
Options:
Description:The mesh we want to modify
n_patchesNumber of patches
C++ Type:unsigned int
Options:
Description:Number of patches
sidesetThe sideset that will be divided into patches
C++ Type:short
Options:
Description:The sideset that will be divided into patches

Required Parameters

centroid_partitioner_directionSpecifies the sort direction if using the centroid partitioner. Available options: x, y, z, radial
C++ Type:MooseEnum
Options:x y z radial
Description:Specifies the sort direction if using the centroid partitioner. Available options: x, y, z, radial
partitionerdefaultSpecifies a mesh partitioner to use when splitting the mesh for a parallel computation.
Default:default
C++ Type:MooseEnum
Options:default metis parmetis linear centroid hilbert_sfc morton_sfc
Description:Specifies a mesh partitioner to use when splitting the mesh for a parallel computation.

Partitioning Parameters

control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector
Options:
Description:Adds user-defined labels for accessing object parameters via control logic.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Options:
Description:Set the enabled status of the MooseObject.

Advanced Parameters

Input Files

modules/heat_conduction/test/tests/generate_radiation_patch/generate_radiation_patch.i
modules/heat_conduction/test/tests/radiation_transfer_action/radiative_transfer_no_action.i

modules/heat_conduction/test/tests/generate_radiation_patch/generate_radiation_patch.i

[Mesh]
  type = MeshGeneratorMesh

  [cmg]
    type = GeneratedMeshGenerator
    dim = 3
    xmin = 0
    xmax = 1
    nx = 25
    ymin = 0
    ymax = 1
    ny = 25
    zmin = 0
    zmax = 1
    nz = 25
  []

  [patch]
    type = PatchSidesetGenerator
    sideset = 0
    n_patches = 10
    input = cmg
  []
[]

modules/heat_conduction/test/tests/radiation_transfer_action/radiative_transfer_no_action.i

[Problem]
  kernel_coverage_check = false
[]

[Mesh]
  type = MeshGeneratorMesh

  [./cmg]
    type = CartesianMeshGenerator
    dim = 2
    dx = '1 1.3 1.9'
    ix = '3 3 3'
    dy = '2 1.2 0.9'
    iy = '3 3 3'
    subdomain_id = '0 1 0
                    4 5 2
                    0 3 0'
  [../]

  [./inner_bottom]
    type = SideSetsBetweenSubdomainsGenerator
    input = cmg
    master_block = 1
    paired_block = 5
    new_boundary = 'inner_bottom'
  [../]

  [./inner_left]
    type = SideSetsBetweenSubdomainsGenerator
    input = inner_bottom
    master_block = 4
    paired_block = 5
    new_boundary = 'inner_left'
  [../]

  [./inner_right]
    type = SideSetsBetweenSubdomainsGenerator
    input = inner_left
    master_block = 2
    paired_block = 5
    new_boundary = 'inner_right'
  [../]

  [./inner_top]
    type = SideSetsBetweenSubdomainsGenerator
    input = inner_right
    master_block = 3
    paired_block = 5
    new_boundary = 'inner_top'
  [../]

  [./rename]
    type = RenameBlockGenerator
    old_block_id = '1 2 3 4'
    new_block_id = '0 0 0 0'
    input = inner_top
  [../]

  [./split_inner_bottom]
    type = PatchSidesetGenerator
    sideset = 4
    n_patches = 2
    partitioner = centroid
    centroid_partitioner_direction = x
    input = rename
  [../]

  [./split_inner_left]
    type = PatchSidesetGenerator
    sideset = 5
    n_patches = 2
    partitioner = centroid
    centroid_partitioner_direction = y
    input = split_inner_bottom
  [../]

  [./split_inner_right]
    type = PatchSidesetGenerator
    sideset = 6
    n_patches = 2
    partitioner = centroid
    centroid_partitioner_direction = y
    input = split_inner_left
  [../]

  [./split_inner_top]
    type = PatchSidesetGenerator
    sideset = 7
    n_patches = 3
    partitioner = centroid
    centroid_partitioner_direction = x
    input = split_inner_right
  [../]
[]

[Variables]
  [./temperature]
    block = 0
  [../]
[]

[Kernels]
  [./heat_conduction]
    type = HeatConduction
    variable = temperature
    block = 0
    diffusion_coefficient = 5
  [../]
[]

[UserObjects]
  [./gray_lambert]
    type = ViewFactorObjectSurfaceRadiation
    boundary = 'inner_bottom_0 inner_bottom_1
                inner_left_0 inner_left_1
                inner_right_0 inner_right_1
                inner_top_0 inner_top_1 inner_top_2'
    fixed_temperature_boundary = 'inner_bottom_0 inner_bottom_1'
    fixed_boundary_temperatures = '1200          1200'
    adiabatic_boundary = 'inner_top_0 inner_top_1 inner_top_2'
    emissivity = '0.9 0.9
                  0.8 0.8
                  0.4 0.4
                  1 1 1'
    temperature = temperature
    view_factor_object_name = view_factor
    execute_on = 'LINEAR TIMESTEP_END'
  [../]

  [./view_factor]
    type = UnobstructedPlanarViewFactor
    boundary = 'inner_bottom_0 inner_bottom_1
                inner_left_0 inner_left_1
                inner_right_0 inner_right_1
                inner_top_0 inner_top_1 inner_top_2'
    normalize_view_factor = true
    execute_on = 'INITIAL'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = temperature
    boundary = left
    value = 600
  [../]

  [./right]
    type = DirichletBC
    variable = temperature
    boundary = right
    value = 300
  [../]

  [./radiation]
    type = GrayLambertNeumannBC
    variable = temperature
    surface_radiation_object_name = gray_lambert
    boundary = 'inner_bottom_0 inner_bottom_1
                inner_left_0 inner_left_1
                inner_right_0 inner_right_1
                inner_top_0 inner_top_1 inner_top_2'
  [../]
[]

[Postprocessors]
  [./average_T_inner_right]
    type = SideAverageValue
    variable = temperature
    boundary = inner_right
  [../]
[]

[Executioner]
  type = Steady
[]

[Outputs]
  exodus = true
[]

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