XFEMEqualValueAtInterface

enforce a same value on both sides of the 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

  • variableThe name of the variable that this constraint is applied to.

    C++ Type:NonlinearVariableName

    Options:

    Description:The name of the variable that this constraint is applied to.

  • alphaPenalty parameter in penalty formulation.

    C++ Type:double

    Options:

    Description:Penalty parameter in penalty formulation.

  • valuePrescribed value at the interface.

    C++ Type:double

    Options:

    Description:Prescribed value at the interface.

Required Parameters

  • execute_onLINEARThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

    Default:LINEAR

    C++ Type:ExecFlagEnum

    Options:NONE INITIAL LINEAR NONLINEAR TIMESTEP_END TIMESTEP_BEGIN FINAL CUSTOM

    Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

  • interface_id0The id of the interface.

    Default:0

    C++ Type:unsigned int

    Options:

    Description:The id of the interface.

  • geometric_cut_userobjectName of GeometricCutUserObject associated with this constraint.

    C++ Type:UserObjectName

    Options:

    Description:Name of GeometricCutUserObject associated with this constraint.

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

References