MaxIncrement

!syntax description /Dampers/MaxIncrement

The MaxIncrement damper limits the change of a variable from one nonlinear iteration to the following iteration. A smaller value set as the max_increment will results in more nonlinear steps.

Example Input Syntax


[Dampers]
  [./max_inc_damp]
    type = MaxIncrement
    max_increment = 0.1
    variable = u
  [../]
[]
(test/tests/dampers/max_increment/max_increment_damper_test.i)

Input Parameters

  • variableThe name of the variable that this damper operates on

    C++ Type:NonlinearVariableName

    Options:

    Description:The name of the variable that this damper operates on

  • max_incrementThe maximum newton increment for the variable.

    C++ Type:double

    Options:

    Description:The maximum newton increment for the variable.

Required Parameters

  • min_damping0Minimum value of computed damping. Damping lower than this will result in an exception being thrown and cutting the time step

    Default:0

    C++ Type:double

    Options:

    Description:Minimum value of computed damping. Damping lower than this will result in an exception being thrown and cutting the time step

  • increment_typeabsoluteType of increment to compare against max_increment. 'absolute': use variable increment. 'fractional': use variable increment divided by the variable value.

    Default:absolute

    C++ Type:MooseEnum

    Options:absolute fractional

    Description:Type of increment to compare against max_increment. 'absolute': use variable increment. 'fractional': use variable increment divided by the variable value.

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.

Advanced Parameters

Input Files