LevelSetMeshRefinementTransfer

When solving the level set equation performing reinitialization of the level set variable is often required to maintain its conservative or signed distance characteristics. Within MOOSE the reinitialization step of the solve is handled using the MultiApp system.

To allow for the sub-application that is performing the reinitialization to use the adapted mesh of the master application the mesh adaptivity information must be transferred from the master application to the sub-application, this transfer is performed by the LevelSetMeshRefinementTransfer.

Example Syntax

[Transfers]
  [./marker_to_sub]
    type = LevelSetMeshRefinementTransfer
    multi_app = sub
    source_variable = marker
    variable = marker
    check_multiapp_execute_on = false
  [../]
[]

/opt/civet/build_0/moose/modules/level_set/test/tests/transfers/markers/multi_level/master.i

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  uniform_refine = 2
[]

[Adaptivity]
  marker = marker
  max_h_level = 2
  cycles_per_step = 2
  [./Indicators]
    [./error]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      coarsen = 0.4
      refine = 0.5
      indicator = error
    [../]
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = LevelSetProblem
[]

[Executioner]
  type = Transient
  dt = 0.02
  num_steps = 4
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    input_files = 'sub.i'
    execute_on = TIMESTEP_END
  [../]
[]

[Transfers]
  [./marker_to_sub]
    type = LevelSetMeshRefinementTransfer
    multi_app = sub
    source_variable = marker
    variable = marker
    check_multiapp_execute_on = false
  [../]
[]

[Outputs]
  hide = u
  exodus = true
[]

Input Parameters

multi_appThe name of the MultiApp to use.
C++ Type:MultiAppName
Options:
Description:The name of the MultiApp to use.
source_variableThe variable to transfer from.
C++ Type:std::vector
Options:
Description:The variable to transfer from.
variableThe auxiliary variable to store the transferred values in.
C++ Type:std::vector
Options:
Description:The auxiliary variable to store the transferred values in.

Required Parameters

check_multiapp_execute_onFalseWhen false the check between the multiapp and transfer execute on flags is not preformed.
Default:False
C++ Type:bool
Options:
Description:When false the check between the multiapp and transfer execute on flags is not preformed.
displaced_source_meshFalseWhether or not to use the displaced mesh for the source mesh.
Default:False
C++ Type:bool
Options:
Description:Whether or not to use the displaced mesh for the source mesh.
displaced_target_meshFalseWhether or not to use the displaced mesh for the target mesh.
Default:False
C++ Type:bool
Options:
Description:Whether or not to use the displaced mesh for the target mesh.

Optional 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.
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
Options:
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/level_set/test/tests/transfers/markers/single_level/master.i
modules/level_set/test/tests/transfers/markers/multi_level/master.i

modules/level_set/test/tests/transfers/markers/single_level/master.i

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Adaptivity]
  marker = marker
  max_h_level = 1
  [./Markers]
    [./marker]
      type = BoxMarker
      bottom_left = '0.25 0.25 0'
      top_right = '0.75 0.75 0'
      outside =  DO_NOTHING
      inside = REFINE
    [../]
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = LevelSetProblem
[]

[Executioner]
  type = Transient
  num_steps = 2
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[MultiApps]
  [./sub]
    type = LevelSetReinitializationMultiApp
    input_files = 'sub.i'
    execute_on = TIMESTEP_BEGIN
  [../]
[]

[Transfers]
  [./marker_to_sub]
    type = LevelSetMeshRefinementTransfer
    multi_app = sub
    source_variable = marker
    variable = marker
  [../]
[]

[Outputs]
  exodus = true
[]

modules/level_set/test/tests/transfers/markers/multi_level/master.i

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  uniform_refine = 2
[]

[Adaptivity]
  marker = marker
  max_h_level = 2
  cycles_per_step = 2
  [./Indicators]
    [./error]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      coarsen = 0.4
      refine = 0.5
      indicator = error
    [../]
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = LevelSetProblem
[]

[Executioner]
  type = Transient
  dt = 0.02
  num_steps = 4
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    input_files = 'sub.i'
    execute_on = TIMESTEP_END
  [../]
[]

[Transfers]
  [./marker_to_sub]
    type = LevelSetMeshRefinementTransfer
    multi_app = sub
    source_variable = marker
    variable = marker
    check_multiapp_execute_on = false
  [../]
[]

[Outputs]
  hide = u
  exodus = true
[]

Example Syntax
Input Parameters
Input Files

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