RhieChowMassFlux

Computes H/A and 1/A together with face mass fluxes for segregated momentum-pressure equations using linear systems.

Overview

This object is responsible for generating the following fields for a SIMPLE-type segregated solver:

  • A1A^{-1} (inverse of the matrix diagonal) which is used as a diffusivity for the pressure equation. This field is stored in a face-based functor, so face values are easy to access but cell values need to be reconstructed. This is mainly used in the pressure Poisson equation where only face values are queried.

  • A1H(u)A^{-1}H(u) whose divergence is used as a source in the pressure Poisson equation. This field is also stored in a face-based functor, so face values are easy to access, but cell-center values need to be reconstructed.

  • (ρun)RC(\rho \vec{u} \vec{n})_{RC} which is the Rhie-Chow corrected face mass flux. This is also stored in a face-based functor, so face values are easy to access, but cell-center values need to be reconstructed.

Besides these capabilities, this user object is also responsible for reconstructing cell velocities at the end of the pressure corrector step. For more information on these fields and processes, we suggest visiting SIMPLE.

Input Parameters

  • p_diffusion_kernelThe diffusion kernel acting on the pressure.

    C++ Type:std::string

    Unit:(no unit assumed)

    Controllable:No

    Description:The diffusion kernel acting on the pressure.

  • pressureThe pressure variable.

    C++ Type:VariableName

    Unit:(no unit assumed)

    Controllable:No

    Description:The pressure variable.

  • rhoDensity functor. A functor is any of the following: a variable, a functor material property, a function, a post-processor, or a number.

    C++ Type:MooseFunctorName

    Unit:(no unit assumed)

    Controllable:No

    Description:Density functor. A functor is any of the following: a variable, a functor material property, a function, a post-processor, or a number.

  • uThe x-component of velocity

    C++ Type:VariableName

    Unit:(no unit assumed)

    Controllable:No

    Description:The x-component of velocity

Required Parameters

  • 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

  • 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_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.

  • vThe y-component of velocity

    C++ Type:VariableName

    Unit:(no unit assumed)

    Controllable:No

    Description:The y-component of velocity

  • wThe z-component of velocity

    C++ Type:VariableName

    Unit:(no unit assumed)

    Controllable:No

    Description:The z-component of velocity

Optional Parameters

  • allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

    Default:False

    C++ Type:bool

    Unit:(no unit assumed)

    Controllable:No

    Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

  • 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.

  • execution_order_group0Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.

    Default:0

    C++ Type:int

    Unit:(no unit assumed)

    Controllable:No

    Description:Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.

  • force_postauxFalseForces the UserObject to be executed in POSTAUX

    Default:False

    C++ Type:bool

    Unit:(no unit assumed)

    Controllable:No

    Description:Forces the UserObject to be executed in POSTAUX

  • force_preauxFalseForces the UserObject to be executed in PREAUX

    Default:False

    C++ Type:bool

    Unit:(no unit assumed)

    Controllable:No

    Description:Forces the UserObject to be executed in PREAUX

  • force_preicFalseForces the UserObject to be executed in PREIC during initial setup

    Default:False

    C++ Type:bool

    Unit:(no unit assumed)

    Controllable:No

    Description:Forces the UserObject to be executed in PREIC during initial setup

  • 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.

Advanced Parameters