- penaltyPenalty scalar
C++ Type:double
Controllable:No
Description:Penalty scalar
- 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
Penalty Dirichlet Old Value Nodal Kernel
Enforces a Dirichlet boundary condition in a weak sense by penalizing differences between the current solution and the old solution for transient problems.
Description
The PenaltyDirichletOldValuePD NodalKernel is used to apply Dirichlet boundary conditions with value of old variable solution using the penalty method for nodesets. It is similar to imposing Dirichlet boundary condition using penalty method, but implemented using nodal kernel.
Example Syntax
#In order to compare the solution generated using preset Dirichlet BC, the penalty was set to 1e10.
#Large penalty number should be used with caution.
[Mesh]
type = PeridynamicsMesh
horizon_number = 3
[./gfm]
type = GeneratedMeshGenerator
dim = 2
xmin = -1.1
xmax = 1.1
ymin = -1.1
ymax = 1.1
nx = 11
ny = 11
elem_type = QUAD4
[../]
[./gpd]
type = MeshGeneratorPD
input = gfm
retain_fe_mesh = false
[../]
[]
[Variables]
[./temp]
[../]
[]
[AuxVariables]
[./bond_status]
initial_condition = 1
[../]
[]
[Kernels]
[./heat]
type = HeatConductionBPD
variable = temp
[../]
[./source]
type = HeatSourceBPD
variable = temp
power_density = '-4'
[../]
[]
[Materials]
[./thermal_material]
type = ThermalConstantHorizonMaterialBPD
thermal_conductivity = 1
temperature = temp
[../]
[]
[NodalKernels]
[./bc_all]
type = PenaltyDirichletOldValuePD
variable = temp
boundary = 'pd_nodes_top pd_nodes_left pd_nodes_right pd_nodes_bottom'
penalty = 1e10
[../]
[]
# [BCs]
# [./fix]
# type = DirichletBC
# variable = temp
# value = 0
# boundary = 'pd_nodes_top pd_nodes_left pd_nodes_right pd_nodes_bottom'
# [../]
# []
[Executioner]
type = Transient
solve_type = 'PJFNK'
start_time = 0
end_time = 1
nl_rel_tol = 1e-14
[]
[Outputs]
file_base = preset_bc_out
exodus = true
[]
Input Parameters
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- 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 BC'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 BC's diagonal jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
- save_inThe name of auxiliary variables to save this BC'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 BC's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
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
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
Controllable:No
Description:The tag for the vectors this Kernel should fill