- variableThe name of the variable that this constraint is applied to.
C++ Type:NonlinearVariableName
Description:The name of the variable that this constraint is applied to.
- alphaPenalty parameter in penalty formulation.
C++ Type:double
Description:Penalty parameter in penalty formulation.
- valuePrescribed value at the interface.
C++ Type:double
Description:Prescribed value at the interface.
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
- geometric_cut_userobjectName of GeometricCutUserObject associated with this constraint.
C++ Type:UserObjectName
Description:Name of GeometricCutUserObject associated with this constraint.
- 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
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
Description:The id of the interface.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
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
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/xfem/test/tests/moving_interface/phase_transition.i
- modules/xfem/test/tests/single_var_constraint_2d/equal_value.i