AddVariableAction

Add a non-linear variable to the simulation.

Finite element and scalar Variables are specified as an object inside the [Variables] block. This MooseObjectAction adds them to the Problem.

More information about Variables may be found on the Variables syntax documentation.

Input Parameters

  • active__all__ If specified only the blocks named will be visited and made active

    Default:__all__

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

    Controllable:No

    Description:If specified only the blocks named will be visited and made active

  • familyLAGRANGESpecifies the family of FE shape functions to use for this variable

    Default:LAGRANGE

    C++ Type:MooseEnum

    Options:LAGRANGE, MONOMIAL, HERMITE, SCALAR, HIERARCHIC, CLOUGH, XYZ, SZABAB, BERNSTEIN, L2_LAGRANGE, L2_HIERARCHIC, NEDELEC_ONE, LAGRANGE_VEC, MONOMIAL_VEC, RAVIART_THOMAS, RATIONAL_BERNSTEIN, SIDE_HIERARCHIC, L2_HIERARCHIC_VEC, L2_LAGRANGE_VEC, L2_RAVIART_THOMAS

    Controllable:No

    Description:Specifies the family of FE shape functions to use for this variable

  • inactiveIf specified blocks matching these identifiers will be skipped.

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

    Controllable:No

    Description:If specified blocks matching these identifiers will be skipped.

  • initial_conditionSpecifies a constant initial condition for this variable

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

    Unit:(no unit assumed)

    Controllable:No

    Description:Specifies a constant initial condition for this variable

  • initial_from_file_varGives the name of a variable for which to read an initial condition from a mesh file

    C++ Type:std::string

    Controllable:No

    Description:Gives the name of a variable for which to read an initial condition from a mesh file

  • orderFIRSTSpecifies the order of the FE shape function to use for this variable (additional orders not listed are allowed)

    Default:FIRST

    C++ Type:MooseEnum

    Options:CONSTANT, FIRST, SECOND, THIRD, FOURTH

    Controllable:No

    Description:Specifies the order of the FE shape function to use for this variable (additional orders not listed are allowed)

  • scalingSpecifies a scaling factor to apply to this variable

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

    Unit:(no unit assumed)

    Controllable:No

    Description:Specifies a scaling factor to apply to this variable

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.

Advanced Parameters