CoupledPenaltyInterfaceDiffusion

Description

This class ensures the continuity of flux of variable and neighbor_var across an interface. Additionally, via a penalty factor, CoupledPenaltyInterfaceDiffusion enforces the continuity of the value of secondary_coupled_var and primary_coupled_var. The latter two parameters are optional input file parameters; if they are not specified, then they default to neighbor_var and variable respectively. Note that the penalty method (for sufficiently high penalty parameter) displays optimal convergence rates (p + 1) while strong enforcement of value continuity results in degradation of the convergence rate. For a discussion of this phenomena, see this moose forum discussion.

Input Parameters

neighbor_varThe variable on the other side of the interface.
C++ Type:std::vector<VariableName>
Controllable:No
Description:The variable on the other side of the interface.
penaltyThe penalty that penalizes jump between primary and neighbor secondary variables.
C++ Type:double
Controllable:No
Description:The penalty that penalizes jump between primary and neighbor secondary variables.
variableThe name of the variable that this residual object operates on
C++ Type:NonlinearVariableName
Controllable:No
Description:The name of the variable that this residual object operates on

Required Parameters

boundaryThe list of boundaries (ids or names) from the mesh where this boundary condition applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this boundary condition applies
diag_save_inThe name of auxiliary variables to save this Kernel's diagonal Jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
C++ Type:std::vector<AuxVariableName>
Controllable:No
Description:The name of auxiliary variables to save this Kernel's diagonal Jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
diag_save_in_var_sideThis parameter must exist if diag_save_in variables are specified and must have the same length as diag_save_in. This vector specifies whether the corresponding aux_var should save-in jacobian contributions from the primary ('p') or secondary side ('s').
C++ Type:MultiMooseEnum
Options:m, s
Controllable:No
Description:This parameter must exist if diag_save_in variables are specified and must have the same length as diag_save_in. This vector specifies whether the corresponding aux_var should save-in jacobian contributions from the primary ('p') or secondary side ('s').
primary_coupled_varThe coupled variable on the master side
C++ Type:std::vector<VariableName>
Controllable:No
Description:The coupled variable on the master side
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.
save_inThe name of auxiliary variables to save this Kernel's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
C++ Type:std::vector<AuxVariableName>
Controllable:No
Description:The name of auxiliary variables to save this Kernel's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
save_in_var_sideThis parameter must exist if save_in variables are specified and must have the same length as save_in. This vector specifies whether the corresponding aux_var should save-in residual contributions from the primary ('p') or secondary side ('s').
C++ Type:MultiMooseEnum
Options:m, s
Controllable:No
Description:This parameter must exist if save_in variables are specified and must have the same length as save_in. This vector specifies whether the corresponding aux_var should save-in residual contributions from the primary ('p') or secondary side ('s').
secondary_coupled_varThe coupled variable on the slave side
C++ Type:std::vector<VariableName>
Controllable:No
Description:The coupled variable on the slave side

Optional 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.
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
seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator
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

extra_matrix_tagsThe extra tags for the matrices this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the matrices this Kernel should fill
extra_vector_tagsThe extra tags for the vectors this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the vectors this Kernel should fill
matrix_tagssystemThe tag for the matrices this Kernel should fill
Default:system
C++ Type:MultiMooseEnum
Options:nontime, system
Controllable:No
Description:The tag for the matrices this Kernel should fill
vector_tagsnontimeThe tag for the vectors this Kernel should fill
Default:nontime
C++ Type:MultiMooseEnum
Options:nontime, time
Controllable:No
Description:The tag for the vectors this Kernel should fill

Tagging Parameters

Input Files

(modules/fsi/test/tests/fsi_2d/fsi_flat_channel.i)

(modules/fsi/test/tests/fsi_2d/fsi_flat_channel.i)

[GlobalParams]
  gravity = '0 0 0'
  integrate_p_by_parts = true
  laplace = true
  convective_term = true
  transient_term = true
  pspg = true
  displacements = 'disp_x disp_y'
[]

[Mesh]
  [gmg]
  type = GeneratedMeshGenerator
  dim = 2
  xmin = 0
  xmax = 3.0
  ymin = 0
  ymax = 1.0
  nx = 10
  ny = 15
  elem_type = QUAD4
  []

  [subdomain1]
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0.0 0.5 0'
    block_id = 1
    top_right = '3.0 1.0 0'
    input = gmg
  []

  [interface]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = '0'
    paired_block = '1'
    new_boundary = 'master0_interface'
    input = subdomain1
  []

  [break_boundary]
    type = BreakBoundaryOnSubdomainGenerator
    input = interface
  []
[]

[Variables]
  [./vel_x]
    block = 0
  [../]
  [./vel_y]
    block = 0
  [../]
  [./p]
    block = 0
  [../]
  [./disp_x]
  [../]
  [./disp_y]
  [../]
  [./vel_x_solid]
    block = 1
  [../]
  [./vel_y_solid]
    block = 1
  [../]
[]

[Kernels]
  [./vel_x_time]
    type = INSMomentumTimeDerivative
    variable = vel_x
    block = 0
    use_displaced_mesh = true
  [../]
  [./vel_y_time]
    type = INSMomentumTimeDerivative
    variable = vel_y
    block = 0
    use_displaced_mesh = true
  [../]
  [./mass]
    type = INSMass
    variable = p
    u = vel_x
    v = vel_y
    pressure = p
    block = 0
    use_displaced_mesh = true
  [../]
  [./x_momentum_space]
    type = INSMomentumLaplaceForm
    variable = vel_x
    u = vel_x
    v = vel_y
    pressure = p
    component = 0
    block = 0
    use_displaced_mesh = true
  [../]
  [./y_momentum_space]
    type = INSMomentumLaplaceForm
    variable = vel_y
    u = vel_x
    v = vel_y
    pressure = p
    component = 1
    block = 0
    use_displaced_mesh = true
  [../]
  [./vel_x_mesh]
    type = ConvectedMesh
    disp_x = disp_x
    disp_y = disp_y
    variable = vel_x
    block = 0
    use_displaced_mesh = true
  [../]
  [./vel_y_mesh]
    type = ConvectedMesh
    disp_x = disp_x
    disp_y = disp_y
    variable = vel_y
    block = 0
    use_displaced_mesh = true
  [../]
  [./disp_x_fluid]
    type = Diffusion
    variable = disp_x
    block = 0
  [../]
  [./disp_y_fluid]
    type = Diffusion
    variable = disp_y
    block = 0
  [../]
  [./accel_tensor_x]
    type = CoupledTimeDerivative
    variable = disp_x
    v = vel_x_solid
    block = 1
  [../]
  [./accel_tensor_y]
    type = CoupledTimeDerivative
    variable = disp_y
    v = vel_y_solid
    block = 1
  [../]
  [./vxs_time_derivative_term]
    type = CoupledTimeDerivative
    variable = vel_x_solid
    v = disp_x
    block = 1
  [../]
  [./vys_time_derivative_term]
    type = CoupledTimeDerivative
    variable = vel_y_solid
    v = disp_y
    block = 1
  [../]
  [./source_vxs]
    type = MatReaction
    variable = vel_x_solid
    block = 1
    mob_name = 1
  [../]
  [./source_vys]
    type = MatReaction
    variable = vel_y_solid
    block = 1
    mob_name = 1
  [../]
[]

[InterfaceKernels]
  [./penalty_interface_x]
    type = CoupledPenaltyInterfaceDiffusion
    variable = vel_x
    neighbor_var = disp_x
    secondary_coupled_var = vel_x_solid
    boundary = master0_interface
    penalty = 1e6
  [../]
  [./penalty_interface_y]
    type = CoupledPenaltyInterfaceDiffusion
    variable = vel_y
    neighbor_var = disp_y
    secondary_coupled_var = vel_y_solid
    boundary = master0_interface
    penalty = 1e6
  [../]
[]

[Modules/TensorMechanics/Master]
  [./solid_domain]
    strain = SMALL
    incremental = false
    # generate_output = 'strain_xx strain_yy strain_zz' ## Not at all necessary, but nice
    block = '1'
  [../]
[]

[Materials]
  [./elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 1e2
    poissons_ratio = 0.3
    block = '1'
  [../]
  [./small_stress]
    type = ComputeLinearElasticStress
    block = 1
  [../]
  [./const]
    type = GenericConstantMaterial
    block = 0
    prop_names = 'rho mu'
    prop_values = '1  1'
  [../]
[]

[BCs]
  [./fluid_x_no_slip]
    type = DirichletBC
    variable = vel_x
    boundary = 'bottom'
    value = 0.0
  [../]
  [./fluid_y_no_slip]
    type = DirichletBC
    variable = vel_y
    boundary = 'bottom left_to_0'
    value = 0.0
  [../]
  [./x_inlet]
    type = FunctionDirichletBC
    variable = vel_x
    boundary = 'left_to_0'
    function = 'inlet_func'
  [../]
  [./no_disp_x]
    type = DirichletBC
    variable = disp_x
    boundary = 'bottom top left_to_1 right_to_1 left_to_0 right_to_0'
    value = 0
  [../]
  [./no_disp_y]
    type = DirichletBC
    variable = disp_y
    boundary = 'bottom top left_to_1 right_to_1 left_to_0 right_to_0'
    value = 0
  [../]
  [./solid_x_no_slip]
    type = DirichletBC
    variable = vel_x_solid
    boundary = 'top left_to_1 right_to_1'
    value = 0.0
  [../]
  [./solid_y_no_slip]
    type = DirichletBC
    variable = vel_y_solid
    boundary = 'top left_to_1 right_to_1'
    value = 0.0
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  # num_steps = 60
  dt = 0.1
  dtmin = 0.1
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
  line_search = none
[]

[Outputs]
  [./out]
    type = Exodus
  [../]
[]

[Functions]
  [./inlet_func]
    type = ParsedFunction
    value = '(-16 * (y - 0.25)^2 + 1) * (1 + cos(t))'
  [../]
[]

Description
Input Parameters
Input Files

Install MOOSE

New Users

Examples and Tutorials

Application Usage

Physics and Syntax

Application Development

Framework Development

MOOSEDocs

Infrastructure

Questions

Information and Tools

INL Applications and Remote Access