- vVariable to take the value of.
C++ Type:std::vector<VariableName>
Unit:(no unit assumed)
Controllable:No
Description:Variable to take the value of.
- variableThe name of the variable that this object applies to
C++ Type:AuxVariableName
Unit:(no unit assumed)
Controllable:No
Description:The name of the variable that this object applies to
ProjectionAux
Returns the specified variable as an auxiliary variable with a projection of the source variable. If they are the same type, this amounts to a simple copy.
The ProjectionAux can be used to make a copy of a field variable, for example to lag them in certain numerical schemes. Many AuxKernels can use variables as arguments, without modifying them, and store the result in a separate variable. The use of a ProjectionAux can often be avoided for that reason.
The ProjectionAux can also be used to project between different finite element variable families and order. The "v" parameter is then the source variable.
The default projection method will attempt to enforce that the two variables have the same value on every quadrature point. If the shape of the source cannot be reproduced by the target variable finite element family and order, the modeler is invited to measure the projection error using a ElementL2Difference postprocessor.
commentnote
Elemental variables that are discontinuous at nodes are projected to nodal variables by computing nodal values as element-volume-weighted averages of the centroid values of neighbor elements.
commentnote
The block restriction of the auxkernel, specified using the "block" parameter, is used to select the source variable value as well using the "use_block_restriction_for_source" parameter.
commentnote
Lower dimensional elements are currently not supported. If you require using lower dimensional elements for projections, please reach out on the MOOSE Discussions forum.
Input Parameters
- _allow_nodal_to_elemental_couplingTrue
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Unit:(no unit assumed)
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- boundaryThe list of boundaries (ids or names) from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Unit:(no unit assumed)
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object applies
- check_boundary_restrictedTrueWhether to check for multiple element sides on the boundary in the case of a boundary restricted, element aux variable. Setting this to false will allow contribution to a single element's elemental value(s) from multiple boundary sides on the same element (example: when the restricted boundary exists on two or more sides of an element, such as at a corner of a mesh
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Whether to check for multiple element sides on the boundary in the case of a boundary restricted, element aux variable. Setting this to false will allow contribution to a single element's elemental value(s) from multiple boundary sides on the same element (example: when the restricted boundary exists on two or more sides of an element, such as at a corner of a mesh
- execute_onLINEAR TIMESTEP_ENDThe list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
Default:LINEAR TIMESTEP_END
C++ Type:ExecFlagEnum
Unit:(no unit assumed)
Controllable:No
Description:The list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
- ghost_layers1The number of layers of elements to ghost.
Default:1
C++ Type:unsigned short
Unit:(no unit assumed)
Controllable:No
Description:The number of layers of elements to ghost.
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- use_block_restriction_for_sourceFalseWhether to use the auxkernel block restriction to also restrict the locations selected for source variable values
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Whether to use the auxkernel block restriction to also restrict the locations selected for source variable values
- use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Unit:(no unit assumed)
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Unit:(no unit assumed)
Controllable:No
Description:The seed for the master random number generator
- 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
Unit:(no unit assumed)
Controllable:No
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.