XFEMEqualValueAtInterface

Enforce that the solution have the same value on opposing sides of an XFEM interface.

Description

The XFEMEqualValueAtInterface enforces at the interface using a penalty approach.

Example Input File Syntax

[./xfem_constraint]
  type = XFEMEqualValueAtInterface
  geometric_cut_userobject = 'line_seg_cut_uo'
  use_displaced_mesh = false
  variable = u
  value = 1
  alpha = 1e5
[../]
(modules/xfem/test/tests/single_var_constraint_2d/equal_value.i)

Input Parameters

  • alphaPenalty parameter in penalty formulation.

    C++ Type:double

    Controllable:No

    Description:Penalty parameter in penalty formulation.

  • valuePrescribed value at the interface.

    C++ Type:double

    Controllable:No

    Description:Prescribed value at the interface.

  • 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

  • geometric_cut_userobjectName of GeometricCutUserObject associated with this constraint.

    C++ Type:UserObjectName

    Controllable:No

    Description:Name of GeometricCutUserObject associated with this constraint.

  • interface_id0The id of the interface.

    Default:0

    C++ Type:unsigned int

    Controllable:No

    Description:The id of the interface.

Optional Parameters

  • absolute_value_vector_tagsThe tags for the vectors this residual object should fill with the absolute value of the residual contribution

    C++ Type:std::vector<TagName>

    Controllable:No

    Description:The tags for the vectors this residual object should fill with the absolute value of the residual contribution

  • 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

  • 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

Input Files

References

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