mixtureKEpsilon< BasicMomentumTransportModel > Class Template Reference

Mixture k-epsilon turbulence model for two-phase gas-liquid systems. More...

Inheritance diagram for mixtureKEpsilon< BasicMomentumTransportModel >:
Collaboration diagram for mixtureKEpsilon< BasicMomentumTransportModel >:

Public Types

typedef BasicMomentumTransportModel::alphaField alphaField
 
typedef BasicMomentumTransportModel::rhoField rhoField
 
typedef BasicMomentumTransportModel::transportModel transportModel
 
- Public Types inherited from eddyViscosity< RASModel< BasicMomentumTransportModel > >
typedef RASModel< BasicMomentumTransportModel > ::alphaField alphaField
 
typedef RASModel< BasicMomentumTransportModel > ::rhoField rhoField
 
typedef RASModel< BasicMomentumTransportModel > ::transportModel transportModel
 
- Public Types inherited from linearViscousStress< RASModel< BasicMomentumTransportModel > >
typedef RASModel< BasicMomentumTransportModel > ::alphaField alphaField
 
typedef RASModel< BasicMomentumTransportModel > ::rhoField rhoField
 
typedef RASModel< BasicMomentumTransportModel > ::transportModel transportModel
 
- Public Types inherited from RASModel< BasicMomentumTransportModel >
typedef BasicMomentumTransportModel::alphaField alphaField
 
typedef BasicMomentumTransportModel::rhoField rhoField
 
typedef BasicMomentumTransportModel::transportModel transportModel
 

Public Member Functions

 TypeName ("mixtureKEpsilon")
 Runtime type information. More...
 
 mixtureKEpsilon (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &type=typeName)
 Construct from components. More...
 
 mixtureKEpsilon (const mixtureKEpsilon &)=delete
 Disallow default bitwise copy construction. More...
 
virtual ~mixtureKEpsilon ()
 Destructor. More...
 
virtual bool read ()
 Re-read model coefficients if they have changed. More...
 
virtual tmp< volScalarFieldk () const
 Return the turbulence kinetic energy. More...
 
virtual tmp< volScalarFieldepsilon () const
 Return the turbulence kinetic energy dissipation rate. More...
 
virtual void correct ()
 Solve the turbulence equations and correct the turbulence viscosity. More...
 
void operator= (const mixtureKEpsilon &)=delete
 Disallow default bitwise assignment. More...
 
- Public Member Functions inherited from eddyViscosity< RASModel< BasicMomentumTransportModel > >
 eddyViscosity (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
 Construct from components. More...
 
virtual ~eddyViscosity ()
 Destructor. More...
 
virtual tmp< volScalarFieldnut () const
 Return the turbulence viscosity. More...
 
virtual tmp< scalarFieldnut (const label patchi) const
 Return the turbulence viscosity on patch. More...
 
virtual tmp< volSymmTensorFieldsigma () const
 Return the Reynolds stress tensor [m^2/s^2]. More...
 
virtual void validate ()
 Validate the turbulence fields after construction. More...
 
- Public Member Functions inherited from linearViscousStress< RASModel< BasicMomentumTransportModel > >
 linearViscousStress (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
 Construct from components. More...
 
virtual ~linearViscousStress ()
 Destructor. More...
 
virtual tmp< volSymmTensorFielddevTau () const
 Return the effective stress tensor. More...
 
virtual tmp< fvVectorMatrixdivDevTau (volVectorField &U) const
 Return the source term for the momentum equation. More...
 
virtual tmp< fvVectorMatrixdivDevTau (const volScalarField &rho, volVectorField &U) const
 Return the source term for the momentum equation. More...
 
- Public Member Functions inherited from RASModel< BasicMomentumTransportModel >
 TypeName ("RAS")
 Runtime type information. More...
 
 declareRunTimeSelectionTable (autoPtr, RASModel, dictionary,(const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport),(alpha, rho, U, alphaRhoPhi, phi, transport))
 
 RASModel (const word &type, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
 Construct from components. More...
 
 RASModel (const RASModel &)=delete
 Disallow default bitwise copy construction. More...
 
virtual ~RASModel ()
 Destructor. More...
 
const dimensionedScalarkMin () const
 Return the lower allowable limit for k (default: small) More...
 
const dimensionedScalarepsilonMin () const
 Return the lower allowable limit for epsilon (default: small) More...
 
const dimensionedScalaromegaMin () const
 Return the lower allowable limit for omega (default: small) More...
 
dimensionedScalarkMin ()
 Allow kMin to be changed. More...
 
dimensionedScalarepsilonMin ()
 Allow epsilonMin to be changed. More...
 
dimensionedScalaromegaMin ()
 Allow omegaMin to be changed. More...
 
virtual const dictionarycoeffDict () const
 Const access to the coefficients dictionary. More...
 
virtual tmp< volScalarFieldnuEff () const
 Return the effective viscosity. More...
 
virtual tmp< scalarFieldnuEff (const label patchi) const
 Return the effective viscosity on patch. More...
 
void operator= (const RASModel &)=delete
 Disallow default bitwise assignment. More...
 

Protected Member Functions

wordList epsilonBoundaryTypes (const volScalarField &epsilon) const
 
void correctInletOutlet (volScalarField &vsf, const volScalarField &refVsf) const
 
void initMixtureFields ()
 
virtual void correctNut ()
 
tmp< volScalarFieldCt2 () const
 
tmp< volScalarFieldrholEff () const
 
tmp< volScalarFieldrhogEff () const
 
tmp< volScalarFieldrhom () const
 
tmp< volScalarFieldmix (const volScalarField &fc, const volScalarField &fd) const
 
tmp< volScalarFieldmixU (const volScalarField &fc, const volScalarField &fd) const
 
tmp< surfaceScalarFieldmixFlux (const surfaceScalarField &fc, const surfaceScalarField &fd) const
 
tmp< volScalarFieldbubbleG () const
 
virtual tmp< fvScalarMatrixkSource () const
 
virtual tmp< fvScalarMatrixepsilonSource () const
 
tmp< volScalarFieldDkEff (const volScalarField &nutm) const
 Return the effective diffusivity for k. More...
 
tmp< volScalarFieldDepsilonEff (const volScalarField &nutm) const
 Return the effective diffusivity for epsilon. More...
 
- Protected Member Functions inherited from RASModel< BasicMomentumTransportModel >
virtual void printCoeffs (const word &type)
 Print model coefficients. More...
 

Protected Attributes

dimensionedScalar Cmu_
 
dimensionedScalar C1_
 
dimensionedScalar C2_
 
dimensionedScalar C3_
 
dimensionedScalar Cp_
 
dimensionedScalar alphap_
 
dimensionedScalar sigmak_
 
dimensionedScalar sigmaEps_
 
volScalarField k_
 
volScalarField epsilon_
 
autoPtr< volScalarFieldCt2_
 
autoPtr< volScalarFieldrhom_
 
autoPtr< volScalarFieldkm_
 
autoPtr< volScalarFieldepsilonm_
 
- Protected Attributes inherited from eddyViscosity< RASModel< BasicMomentumTransportModel > >
volScalarField nut_
 
- Protected Attributes inherited from RASModel< BasicMomentumTransportModel >
dictionary RASDict_
 RAS coefficients dictionary. More...
 
Switch turbulence_
 Turbulence on/off flag. More...
 
Switch printCoeffs_
 Flag to print the model coeffs at run-time. More...
 
dictionary coeffDict_
 Model coefficients dictionary. More...
 
dimensionedScalar kMin_
 Lower limit of k. More...
 
dimensionedScalar epsilonMin_
 Lower limit of epsilon. More...
 
dimensionedScalar omegaMin_
 Lower limit for omega. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from RASModel< BasicMomentumTransportModel >
static autoPtr< RASModelNew (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
 Return a reference to the selected RAS model. More...
 

Detailed Description

template<class BasicMomentumTransportModel>
class Foam::RASModels::mixtureKEpsilon< BasicMomentumTransportModel >

Mixture k-epsilon turbulence model for two-phase gas-liquid systems.

The basic structure of the model is based on:

    Behzadi, A., Issa, R. I., & Rusche, H. (2004).
    Modelling of dispersed bubble and droplet flow at high phase fractions.
    Chemical Engineering Science, 59(4), 759-770.

but an effective density for the gas is used in the averaging and an alternative model for bubble-generated turbulence from:

    Lahey Jr, R. T. (2005).
    The simulation of multidimensional multiphase flows.
    Nuclear Engineering and Design, 235(10), 1043-1060.

The default model coefficients are

    mixtureKEpsilonCoeffs
    {
        Cmu         0.09;
        C1          1.44;
        C2          1.92;
        C3          C2;
        Cp          0.25; // Bubble generated turbulence
        alphap      0.3;  // Gas phase fraction below which
                          // bubble generated turbulence is included
        sigmak      1.0;
        sigmaEps    1.3;
    }
Source files

Definition at line 83 of file mixtureKEpsilon.H.

Member Typedef Documentation

◆ alphaField

typedef BasicMomentumTransportModel::alphaField alphaField

Definition at line 191 of file mixtureKEpsilon.H.

◆ rhoField

typedef BasicMomentumTransportModel::rhoField rhoField

Definition at line 192 of file mixtureKEpsilon.H.

◆ transportModel

typedef BasicMomentumTransportModel::transportModel transportModel

Definition at line 193 of file mixtureKEpsilon.H.

Constructor & Destructor Documentation

◆ mixtureKEpsilon() [1/2]

mixtureKEpsilon ( const alphaField alpha,
const rhoField rho,
const volVectorField U,
const surfaceScalarField alphaRhoPhi,
const surfaceScalarField phi,
const transportModel transport,
const word type = typeName 
)

Construct from components.

Definition at line 47 of file mixtureKEpsilon.C.

References Foam::bound(), and mixtureKEpsilon< BasicMomentumTransportModel >::epsilonBoundaryTypes().

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◆ mixtureKEpsilon() [2/2]

mixtureKEpsilon ( const mixtureKEpsilon< BasicMomentumTransportModel > &  )
delete

Disallow default bitwise copy construction.

◆ ~mixtureKEpsilon()

virtual ~mixtureKEpsilon ( )
inlinevirtual

Destructor.

Definition at line 219 of file mixtureKEpsilon.H.

References mixtureKEpsilon< BasicMomentumTransportModel >::read().

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Member Function Documentation

◆ epsilonBoundaryTypes()

wordList epsilonBoundaryTypes ( const volScalarField epsilon) const
protected

Definition at line 180 of file mixtureKEpsilon.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryField(), mixtureKEpsilon< BasicMomentumTransportModel >::correctInletOutlet(), forAll, and patchi.

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::mixtureKEpsilon().

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◆ correctInletOutlet()

void correctInletOutlet ( volScalarField vsf,
const volScalarField refVsf 
) const
protected

Definition at line 202 of file mixtureKEpsilon.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryField(), GeometricField< Type, PatchField, GeoMesh >::boundaryFieldRef(), forAll, and patchi.

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::epsilonBoundaryTypes().

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◆ initMixtureFields()

◆ correctNut()

void correctNut ( )
protectedvirtual

◆ Ct2()

◆ rholEff()

tmp< volScalarField > rholEff ( ) const
protected

Definition at line 415 of file mixtureKEpsilon.C.

References fluid, phaseSystem::otherPhase(), and phaseModel::rho().

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◆ rhogEff()

tmp< volScalarField > rhogEff ( ) const
protected

Definition at line 425 of file mixtureKEpsilon.C.

References virtualMassModel::Cvm(), fluid, phaseSystem::lookupSubModel(), phaseSystem::otherPhase(), and phaseModel::rho().

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◆ rhom()

tmp< volScalarField > rhom ( ) const
protected

Definition at line 436 of file mixtureKEpsilon.C.

References alphal, and mixtureKEpsilon< BasicMomentumTransportModel >::mix().

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◆ mix()

tmp< volScalarField > mix ( const volScalarField fc,
const volScalarField fd 
) const
protected

Definition at line 447 of file mixtureKEpsilon.C.

References alphal, and mixtureKEpsilon< BasicMomentumTransportModel >::mixU().

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::rhom().

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◆ mixU()

tmp< volScalarField > mixU ( const volScalarField fc,
const volScalarField fd 
) const
protected

Definition at line 461 of file mixtureKEpsilon.C.

References alphal, and mixtureKEpsilon< BasicMomentumTransportModel >::mixFlux().

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::mix().

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◆ mixFlux()

tmp< surfaceScalarField > mixFlux ( const surfaceScalarField fc,
const surfaceScalarField fd 
) const
protected

Definition at line 477 of file mixtureKEpsilon.C.

References alphal, and Foam::fvc::interpolate().

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::mixU().

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◆ bubbleG()

tmp< volScalarField > bubbleG ( ) const
protected

Definition at line 499 of file mixtureKEpsilon.C.

References dragModel::CdRe(), drag, fluid, phaseSystem::lookupSubModel(), Foam::mag(), phaseSystem::otherPhase(), Foam::pos(), Foam::pow(), Foam::pow3(), and U.

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◆ kSource()

tmp< fvScalarMatrix > kSource ( ) const
protectedvirtual

Definition at line 538 of file mixtureKEpsilon.C.

References Foam::fvm::Su().

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◆ epsilonSource()

tmp< fvScalarMatrix > epsilonSource ( ) const
protectedvirtual

Definition at line 546 of file mixtureKEpsilon.C.

References Foam::fvm::Su().

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◆ DkEff()

tmp<volScalarField> DkEff ( const volScalarField nutm) const
inlineprotected

Return the effective diffusivity for k.

Definition at line 170 of file mixtureKEpsilon.H.

References GeometricField< scalar, fvPatchField, volMesh >::New().

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◆ DepsilonEff()

tmp<volScalarField> DepsilonEff ( const volScalarField nutm) const
inlineprotected

Return the effective diffusivity for epsilon.

Definition at line 180 of file mixtureKEpsilon.H.

References GeometricField< scalar, fvPatchField, volMesh >::New().

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◆ TypeName()

TypeName ( "mixtureKEpsilon< BasicMomentumTransportModel >"  )

Runtime type information.

◆ read()

bool read ( )
virtual

Re-read model coefficients if they have changed.

Implements eddyViscosity< RASModel< BasicMomentumTransportModel > >.

Definition at line 321 of file mixtureKEpsilon.C.

References Foam::read().

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::~mixtureKEpsilon().

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◆ k()

virtual tmp<volScalarField> k ( ) const
inlinevirtual

Return the turbulence kinetic energy.

Implements eddyViscosity< RASModel< BasicMomentumTransportModel > >.

Definition at line 229 of file mixtureKEpsilon.H.

References mixtureKEpsilon< BasicMomentumTransportModel >::k_.

◆ epsilon()

virtual tmp<volScalarField> epsilon ( ) const
inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Definition at line 235 of file mixtureKEpsilon.H.

References mixtureKEpsilon< BasicMomentumTransportModel >::correct(), mixtureKEpsilon< BasicMomentumTransportModel >::epsilon_, and mixtureKEpsilon< BasicMomentumTransportModel >::operator=().

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◆ correct()

◆ operator=()

void operator= ( const mixtureKEpsilon< BasicMomentumTransportModel > &  )
delete

Disallow default bitwise assignment.

Referenced by mixtureKEpsilon< BasicMomentumTransportModel >::epsilon().

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Member Data Documentation

◆ Cmu_

dimensionedScalar Cmu_
protected

Definition at line 105 of file mixtureKEpsilon.H.

◆ C1_

dimensionedScalar C1_
protected

Definition at line 106 of file mixtureKEpsilon.H.

◆ C2_

dimensionedScalar C2_
protected

Definition at line 107 of file mixtureKEpsilon.H.

◆ C3_

dimensionedScalar C3_
protected

Definition at line 108 of file mixtureKEpsilon.H.

◆ Cp_

dimensionedScalar Cp_
protected

Definition at line 109 of file mixtureKEpsilon.H.

◆ alphap_

dimensionedScalar alphap_
protected

Definition at line 110 of file mixtureKEpsilon.H.

◆ sigmak_

dimensionedScalar sigmak_
protected

Definition at line 111 of file mixtureKEpsilon.H.

◆ sigmaEps_

dimensionedScalar sigmaEps_
protected

Definition at line 112 of file mixtureKEpsilon.H.

◆ k_

◆ epsilon_

◆ Ct2_

autoPtr<volScalarField> Ct2_
protected

Definition at line 121 of file mixtureKEpsilon.H.

◆ rhom_

autoPtr<volScalarField> rhom_
protected

Definition at line 122 of file mixtureKEpsilon.H.

◆ km_

autoPtr<volScalarField> km_
protected

Definition at line 123 of file mixtureKEpsilon.H.

◆ epsilonm_

autoPtr<volScalarField> epsilonm_
protected

Definition at line 124 of file mixtureKEpsilon.H.


The documentation for this class was generated from the following files: