INSFVFrictionFlowDiode

Adds a linear friction term, -K vel_i * |d(i)|, i being the momentumcomponent, if the flow is opposite the direction d of the diode

This kernel is meant to be used to implement a simplistic volumetric flow diode. The parameter "resistance" should be chosen such that the flow is sufficiently vanished in the direction opposite the diode.

Input Parameters

directionNormal direction of the diode. Flow is free in this half-plane, subject to friction in the other halfplane
C++ Type:libMesh::VectorValue<double>
Controllable:No
Description:Normal direction of the diode. Flow is free in this half-plane, subject to friction in the other halfplane
momentum_componentThe component of the momentum equation that this kernel applies to.
C++ Type:MooseEnum
Options:x, y, z
Controllable:No
Description:The component of the momentum equation that this kernel applies to.
resistanceFriction factor multiplying the superficial velocity if the flow is in a half plane in the opposite direction of the normal
C++ Type:double
Controllable:No
Description:Friction factor multiplying the superficial velocity if the flow is in a half plane in the opposite direction of the normal
rhie_chow_user_objectThe rhie-chow user-object
C++ Type:UserObjectName
Controllable:No
Description:The rhie-chow user-object
variableThe name of the finite volume variable this kernel applies to
C++ Type:NonlinearVariableName
Controllable:No
Description:The name of the finite volume variable this kernel applies to

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
ghost_layers1The number of layers of elements to ghost.
Default:1
C++ Type:unsigned short
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
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_point_neighborsFalseWhether to use point neighbors, which introduces additional ghosting to that used for simple face neighbors.
Default:False
C++ Type:bool
Controllable:No
Description:Whether to use point neighbors, which introduces additional ghosting to that used for simple face neighbors.

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:Yes
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
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
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

extra_matrix_tagsThe extra tags for the matrices this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the matrices this Kernel should fill
extra_vector_tagsThe extra tags for the vectors this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the vectors this Kernel should fill
matrix_tagssystemThe tag for the matrices this Kernel should fill
Default:system
C++ Type:MultiMooseEnum
Options:nontime, system
Controllable:No
Description:The tag for the matrices this Kernel should fill
vector_tagsnontimeThe tag for the vectors this Kernel should fill
Default:nontime
C++ Type:MultiMooseEnum
Options:nontime, time
Controllable:No
Description:The tag for the vectors this Kernel should fill

Tagging Parameters

Input Files

(modules/navier_stokes/test/tests/finite_volume/fvkernels/flow_diode/friction.i)

(modules/navier_stokes/test/tests/finite_volume/fvkernels/flow_diode/friction.i)

mu = 1
rho = 1

[Mesh]
  [cmg]
    type = CartesianMeshGenerator
    dim = 2
    dx = '1 0.5 1'
    dy = '0.5 0.5'
    ix = '8 5 8'
    iy = '8 8'
    subdomain_id = '0 1 2
                    1 2 1'
  []

  [top_outlet]
    type = ParsedGenerateSideset
    input = cmg
    combinatorial_geometry = 'x>2.499 & y>0.4999'
    new_sideset_name = top_right
  []

  [bottom_outlet]
    type = ParsedGenerateSideset
    input = top_outlet
    combinatorial_geometry = 'x>2.499 & y<0.50001'
    new_sideset_name = bottom_right
  []
[]

[GlobalParams]
  rhie_chow_user_object = 'rc'
  advected_interp_method = 'upwind'
  velocity_interp_method = 'rc'
[]

[UserObjects]
  [rc]
    type = INSFVRhieChowInterpolator
    u = vel_x
    v = vel_y
    pressure = pressure
  []
[]

[Variables]
  [vel_x]
    type = INSFVVelocityVariable
    initial_condition = 1e-6
  []
  [vel_y]
    type = INSFVVelocityVariable
    initial_condition = 1e-6
  []
  [pressure]
    type = INSFVPressureVariable
  []
[]

[FVKernels]
  [mass]
    type = INSFVMassAdvection
    variable = pressure
    rho = ${rho}
  []

  [u_advection]
    type = INSFVMomentumAdvection
    variable = vel_x
    rho = ${rho}
    momentum_component = 'x'
  []
  [u_viscosity]
    type = INSFVMomentumDiffusion
    variable = vel_x
    mu = ${mu}
    momentum_component = 'x'
  []
  [u_pressure]
    type = INSFVMomentumPressure
    variable = vel_x
    momentum_component = 'x'
    pressure = pressure
  []
  [diodes_against_flow]
    type = INSFVFrictionFlowDiode
    resistance = 100
    variable = vel_x
    direction = '-1 0 0'
    block = 1
    momentum_component = 'x'
  []
  [diode_free_flow]
    type = INSFVFrictionFlowDiode
    resistance = 100
    variable = vel_x
    direction = '1 0 0'
    block = 2
    momentum_component = 'y'
  []

  [v_advection]
    type = INSFVMomentumAdvection
    variable = vel_y
    rho = ${rho}
    momentum_component = 'y'
  []
  [v_viscosity]
    type = INSFVMomentumDiffusion
    variable = vel_y
    mu = ${mu}
    momentum_component = 'y'
  []
  [v_pressure]
    type = INSFVMomentumPressure
    variable = vel_y
    momentum_component = 'y'
    pressure = pressure
  []
[]

[FVBCs]
  [walls_u]
    type = INSFVNoSlipWallBC
    variable = vel_x
    boundary = 'top bottom'
    function = 0
  []
  [walls_v]
    type = INSFVNoSlipWallBC
    variable = vel_y
    boundary = 'top bottom'
    function = 0
  []

  [inlet_u]
    type = INSFVInletVelocityBC
    variable = vel_x
    boundary = 'left'
    function = 1
  []
  [inlet_v]
    type = INSFVInletVelocityBC
    variable = vel_y
    boundary = 'left'
    function = 0
  []

  [outlet]
    type = INSFVOutletPressureBC
    variable = pressure
    boundary = 'right'
    function = 1
  []
[]

[Executioner]
  type = Steady
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type -ksp_gmres_restart'
  petsc_options_value = 'asm      lu           NONZERO                   200'
  line_search = 'none'

  nl_abs_tol = 1e-14
[]

[Postprocessors]
  [mdot_top]
    type = VolumetricFlowRate
    boundary = 'top_right'
    vel_x = vel_x
    vel_y = vel_y
    advected_quantity = ${rho}
  []
  [mdot_bottom]
    type = VolumetricFlowRate
    boundary = 'bottom_right'
    vel_x = vel_x
    vel_y = vel_y
    advected_quantity = ${rho}
  []
[]

[Outputs]
  exodus = true
[]

Input Parameters
Input Files

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