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Assign Scalar Variable

Description

This process assigns a scalar value to a variable in all of the entities in a given ModelPart.

For the vector version please see Assign Vector Variable

This process has a generic version:

AssignScalarVariableToEntitiesProcess

Different specialized entry points for scalars

AssignScalarVariableToProcess
AssignScalarVariableToNodesProcess
AssignScalarVariableToElementsProcess
AssignScalarVariableToConditionsProcess
AssignScalarVariableToConstraintsProcess

Different specialized entry points for fields

AssignScalarFieldToNodesProcess
AssignScalarFieldElementsProcess
AssignScalarFieldConditionsProcess

Execution

This process is executed in the following hooks:

`ExecuteInitializeSolutionStep`

Assigns the value. If constrained is true fixes the values after assigning them.

`ExecuteFinalizeSolutionStep`

If constrained is true unfixes the values.

Parameters & Defaults

{
    "model_part_name" :"model_part_name",
    "mesh_id"         : 0,
    "variable_name"   : "variable_name",
    "interval"        : [0.0, 1e30],
    "value"           : 1.0,
    "constrained"     : true,
    "local_axes"      : {},
    "entities"        : []
}

`model_part_name`

Name of the modelpart in wich the process will be applied.

`mesh_id`

Id of the internal mesh to which the process will be applied. Default 0.

`variable_name`

Name of the variable in which the process will be applied.

`interval`

Specifies the interval of time in which the process will be applied.

`value`

Scalar value that will be applied.

It can be expressed as a bool, int, double or string containing a mathematical expression with x,y,z,t as variables.

`constrained`

Specifies if the variable has a constrain true or not false.

Setting to true will cause the values to be fixed during ExecuteInitializeSolutionStep and unfixed during ExecuteFinalizeSolutionStep.

`local_axes`

Specifies the axes in which the value will be applied

`entities`

This option is only available for the AssignScalarVariableToEntitiesProcess entry Point.

List of entities into which the value will be applies. Accepts: nodes, elements, conditions, constraints.