OpenMCNuclideDensitiesControl

Controls the densities in a OpenMCNuclideDensities object.

Description

Changes the nuclide compositions of an OpenMCNuclideDensities user object via a controls. This can be used to change OpenMC material compositions as a function of time, such as for control rod movement or tritium migration.

Example Input Syntax

As an example, the c Controls object will modify the 

[UserObjects<<<{"href": "../../syntax/UserObjects/index.html"}>>>]
  [mat1]
    type = OpenMCNuclideDensities<<<{"description": "Updates nuclide densities in an OpenMC material", "href": "../userobjects/OpenMCNuclideDensities.html"}>>>
    material_id<<<{"description": "ID of material to change nuclide densities"}>>> = 2
    names<<<{"description": "Names of the nuclides to modify densities"}>>> = 'U235 U238'

    # dummy values which do not get set, because the control will override these
    densities<<<{"description": "Nuclide densities (atom/b/cm) to set"}>>> = '0.0 0.0'
  []
[]

[Controls<<<{"href": "../../syntax/Controls/index.html"}>>>]
  [c]
    type = OpenMCNuclideDensitiesControl<<<{"description": "Controls the densities in a OpenMCNuclideDensities object.", "href": "OpenMCNuclideDensitiesControl.html"}>>>
    user_object<<<{"description": "The name of the associated OpenMCNuclideDensities"}>>> = mat1
    names<<<{"description": "Names of the nuclides to modifiy densities for each timestep"}>>> = 'U235 U238'
    densities<<<{"description": "Nuclide densities (atom/b/cm) to set for each timestep"}>>> = '0.03 0.09'
  []
[]
(cardinal/test/tests/controls/openmc_nuclide_densities/openmc.i)

Input Parameters

  • densitiesNuclide densities (atom/b/cm) to set for each timestep

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

    Unit:(no unit assumed)

    Controllable:No

    Description:Nuclide densities (atom/b/cm) to set for each timestep

  • namesNames of the nuclides to modifiy densities for each timestep

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

    Controllable:No

    Description:Names of the nuclides to modifiy densities for each timestep

  • user_objectThe name of the associated OpenMCNuclideDensities

    C++ Type:UserObjectName

    Controllable:No

    Description:The name of the associated OpenMCNuclideDensities

Required Parameters

  • depends_onThe Controls that this control relies upon (i.e. must execute before this one)

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

    Controllable:No

    Description:The Controls that this control relies upon (i.e. must execute before this one)

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.

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Controllable:No

    Description:Set the enabled status of the MooseObject.

  • implicitTrueDetermines whether this object is calculated using an implicit or explicit form

    Default:True

    C++ Type:bool

    Controllable:No

    Description:Determines whether this object is calculated using an implicit or explicit form

Advanced Parameters