Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
realizableKE< BasicTurbulenceModel > Class Template Reference
Turbulence models » RAS turbulence

Realizable k-epsilon turbulence model for incompressible and compressible flows. More...

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Public Types

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

Public Member Functions

 TypeName ("realizableKE")
 Runtime type information. More...
 
 realizableKE (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName, const word &type=typeName)
 Construct from components. More...
 
virtual ~realizableKE ()=default
 Destructor. More...
 
virtual bool read ()
 Re-read model coefficients if they have changed. More...
 
tmp< volScalarField > DkEff () const
 Return the effective diffusivity for k. More...
 
tmp< volScalarField > DepsilonEff () const
 Return the effective diffusivity for epsilon. More...
 
virtual tmp< volScalarField > k () const
 Return the turbulence kinetic energy. More...
 
virtual tmp< volScalarField > epsilon () const
 Return the turbulence kinetic energy dissipation rate. More...
 
virtual void correct ()
 Solve the turbulence equations and correct the turbulence viscosity. More...
 
- Public Member Functions inherited from eddyViscosity< RASModel< BasicTurbulenceModel > >
 eddyViscosity (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName)
 Construct from components. More...
 
virtual ~eddyViscosity ()=default
 Destructor. More...
 
virtual bool read ()=0
 Re-read model coefficients if they have changed. More...
 
virtual tmp< volScalarField > nut () const
 Return the turbulence viscosity. More...
 
virtual tmp< scalarField > nut (const label patchi) const
 Return the turbulence viscosity on patch. More...
 
virtual tmp< volScalarField > k () const=0
 Return the turbulence kinetic energy. More...
 
virtual tmp< volSymmTensorField > R () const
 Return the Reynolds stress tensor. More...
 
virtual void validate ()
 Validate the turbulence fields after construction. More...
 
virtual void correct ()=0
 Solve the turbulence equations and correct the turbulence viscosity. More...
 
- Public Member Functions inherited from linearViscousStress< BasicTurbulenceModel >
 linearViscousStress (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName)
 Construct from components. More...
 
virtual ~linearViscousStress ()=default
 Destructor. More...
 
virtual bool read ()=0
 Re-read model coefficients if they have changed. More...
 
virtual tmp< volSymmTensorField > devRhoReff () const
 Return the effective stress tensor. More...
 
virtual tmp< volSymmTensorField > devRhoReff (const volVectorField &U) const
 Return the effective stress tensor based on a given velocity field. More...
 
virtual tmp< fvVectorMatrix > divDevRhoReff (volVectorField &U) const
 Return the source term for the momentum equation. More...
 
virtual tmp< fvVectorMatrix > divDevRhoReff (const volScalarField &rho, volVectorField &U) const
 Return the source term for the momentum equation. More...
 
virtual void correct ()=0
 Solve the turbulence equations and correct the turbulence viscosity. More...
 

Protected Member Functions

tmp< volScalarField > rCmu (const volTensorField &gradU, const volScalarField &S2, const volScalarField &magS)
 
virtual void correctNut (const volTensorField &gradU, const volScalarField &S2, const volScalarField &magS)
 
virtual void correctNut ()
 
virtual tmp< fvScalarMatrix > kSource () const
 
virtual tmp< fvScalarMatrix > epsilonSource () const
 
virtual void correctNut ()=0
 

Protected Attributes

dimensionedScalar A0_
 
dimensionedScalar C2_
 
dimensionedScalar sigmak_
 
dimensionedScalar sigmaEps_
 
volScalarField k_
 
volScalarField epsilon_
 
- Protected Attributes inherited from eddyViscosity< RASModel< BasicTurbulenceModel > >
volScalarField nut_
 

Detailed Description

template<class BasicTurbulenceModel>
class Foam::RASModels::realizableKE< BasicTurbulenceModel >

Realizable k-epsilon turbulence model for incompressible and compressible flows.

References: 

    Shih, T. H., Liou, W. W., Shabbir, A., Yang, Z., & Zhu, J. (1994).
    A new k-epsilon eddy viscosity model for high Reynolds number
    turbulent flows: Model development and validation.
    NASA STI/Recon Technical Report N, 95, 11442.

    Shih, T. H., Liou, W. W., Shabbir, A., Yang, Z., & Zhu, J. (1995).
    A New k-epsilon Eddy Viscosity Model for High Reynolds Number
    Turbulent Flows.
    Computers and Fluids, 24(3), 227-238.

The default model coefficients are 

    realizableKECoeffs
    {
        A0          4.0;
        C2          1.9;
        sigmak      1.0;
        sigmaEps    1.2;
    }
Source files

Definition at line 83 of file realizableKE.H.

Member Typedef Documentation

◆ alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 129 of file realizableKE.H.

◆ rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 130 of file realizableKE.H.

◆ transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 131 of file realizableKE.H.

Constructor & Destructor Documentation

◆ realizableKE()

realizableKE ( const alphaField &  alpha,
const rhoField &  rho,
const volVectorField &  U,
const surfaceScalarField &  alphaRhoPhi,
const surfaceScalarField &  phi,
const transportModel &  transport,
const word &  propertiesName = turbulenceModel::propertiesName,
const word &  type = typeName 
)

Construct from components.

Definition at line 134 of file realizableKE.C.

References Foam::bound(), realizableKE< BasicTurbulenceModel >::epsilon_, realizableKE< BasicTurbulenceModel >::k_, and Foam::type().

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◆ ~realizableKE()

virtual ~realizableKE ( )
virtualdefault

Destructor.

Member Function Documentation

◆ rCmu()

tmp< volScalarField > rCmu ( const volTensorField &  gradU,
const volScalarField &  S2,
const volScalarField &  magS 
)
protected

Definition at line 43 of file realizableKE.C.

References Foam::acos(), tmp< T >::clear(), Foam::cos(), Foam::dev(), Foam::magSqr(), Foam::max(), Foam::min(), phis(), Foam::skew(), Foam::sqrt(), Foam::symm(), and Us.

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◆ correctNut() [1/2]

void correctNut ( const volTensorField &  gradU,
const volScalarField &  S2,
const volScalarField &  magS 
)
protectedvirtual

Definition at line 76 of file realizableKE.C.

References Time::New(), and Foam::sqr().

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◆ correctNut() [2/2]

void correctNut
protectedvirtual

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 92 of file realizableKE.C.

References Foam::dev(), Foam::fvc::grad(), Foam::magSqr(), Foam::sqrt(), and Foam::symm().

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◆ kSource()

tmp< fvScalarMatrix > kSource
protectedvirtual

Definition at line 102 of file realizableKE.C.

References Foam::dimTime, and Foam::dimVolume.

◆ epsilonSource()

tmp< fvScalarMatrix > epsilonSource
protectedvirtual

Definition at line 117 of file realizableKE.C.

References Foam::dimTime, and Foam::dimVolume.

◆ TypeName()

TypeName ( "realizableKE< BasicTurbulenceModel >"  )

Runtime type information.

◆ read()

bool read
virtual

Re-read model coefficients if they have changed.

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 232 of file realizableKE.C.

References Foam::read().

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◆ DkEff()

tmp< volScalarField > DkEff ( ) const
inline

Return the effective diffusivity for k.

Definition at line 163 of file realizableKE.H.

References nu, and eddyViscosity< RASModel< BasicTurbulenceModel > >::nut_.

◆ DepsilonEff()

tmp< volScalarField > DepsilonEff ( ) const
inline

Return the effective diffusivity for epsilon.

Definition at line 176 of file realizableKE.H.

References nu, and eddyViscosity< RASModel< BasicTurbulenceModel > >::nut_.

◆ k()

virtual tmp< volScalarField > k ( ) const
inlinevirtual

Return the turbulence kinetic energy.

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 189 of file realizableKE.H.

References realizableKE< BasicTurbulenceModel >::k_.

◆ epsilon()

virtual tmp< volScalarField > epsilon ( ) const
inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Definition at line 195 of file realizableKE.H.

References realizableKE< BasicTurbulenceModel >::epsilon_.

◆ correct()

void correct
virtual

Solve the turbulence equations and correct the turbulence viscosity.

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 249 of file realizableKE.C.

References Foam::fvc::absolute(), alpha, Foam::bound(), correct(), Foam::fvm::ddt(), Foam::dev(), Foam::fvc::div(), Foam::fvm::div(), divU, fvOptions, Foam::fvc::grad(), Foam::fvm::laplacian(), Foam::magSqr(), Foam::max(), Time::New(), nu, nut, phi, tmp< T >::ref(), rho, solve(), Foam::fvm::Sp(), Foam::sqrt(), Foam::fvm::SuSp(), Foam::symm(), Foam::twoSymm(), U, and Foam::Zero.

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Member Data Documentation

◆ A0_

dimensionedScalar A0_
protected

Definition at line 94 of file realizableKE.H.

◆ C2_

dimensionedScalar C2_
protected

Definition at line 95 of file realizableKE.H.

◆ sigmak_

dimensionedScalar sigmak_
protected

Definition at line 96 of file realizableKE.H.

◆ sigmaEps_

dimensionedScalar sigmaEps_
protected

Definition at line 97 of file realizableKE.H.

◆ k_

volScalarField k_
protected

Definition at line 102 of file realizableKE.H.

Referenced by realizableKE< BasicTurbulenceModel >::k(), and realizableKE< BasicTurbulenceModel >::realizableKE().

◆ epsilon_

volScalarField epsilon_
protected

Definition at line 103 of file realizableKE.H.

Referenced by realizableKE< BasicTurbulenceModel >::epsilon(), and realizableKE< BasicTurbulenceModel >::realizableKE().

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