NSInitialCondition

NSInitialCondition can be used to initialize variables by evaluating fluid properties.

Example input file syntax

In this example, we initialize the density at the desired initial temperature and pressure conditions.

[ICs]
  [rho]
    type = NSInitialCondition
    fluid_properties = 'fp'
    initial_pressure = ${p_initial}
    initial_temperature = ${T}
    initial_velocity = '1 0.2 18'
    variable = 'rho'
  []
[]
(modules/navier_stokes/test/tests/ics/test.i)

Input Parameters

  • fluid_propertiesThe name of the user object for fluid properties

    C++ Type:UserObjectName

    Controllable:No

    Description:The name of the user object for fluid properties

  • initial_pressureThe initial pressure, assumed constant everywhere

    C++ Type:double

    Controllable:No

    Description:The initial pressure, assumed constant everywhere

  • initial_temperatureThe initial temperature, assumed constant everywhere

    C++ Type:double

    Controllable:No

    Description:The initial temperature, assumed constant everywhere

  • initial_velocityThe initial velocity, assumed constant everywhere

    C++ Type:libMesh::VectorValue<double>

    Controllable:No

    Description:The initial velocity, assumed constant everywhere

  • variableThe variable this initial condition is supposed to provide values for.

    C++ Type:VariableName

    Controllable:No

    Description:The variable this initial condition is supposed to provide values for.

Required Parameters

  • blockThe list of blocks (ids or names) that this object will be applied

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

    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>

    Controllable:No

    Description:The list of boundaries (ids or names) from the mesh where this object applies

  • 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

    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_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

    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.

  • variable_typeSpecifies what this variable is in the Navier Stokes namespace of variables

    C++ Type:MooseEnum

    Options:ht, e, Mach, pressure, rho, rhou, rhov, rhow, rho_et, specific_volume, temperature, vel_x, vel_y, vel_z

    Controllable:No

    Description:Specifies what this variable is in the Navier Stokes namespace of variables

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.

  • ignore_uo_dependencyFalseWhen set to true, a UserObject retrieved by this IC will not be executed before the this IC

    Default:False

    C++ Type:bool

    Controllable:No

    Description:When set to true, a UserObject retrieved by this IC will not be executed before the this IC

Advanced Parameters

Input Files