buoyantKEpsilon< BasicMomentumTransportModel > Class Template Reference

Additional buoyancy generation/dissipation term applied to the k and epsilon equations of the standard k-epsilon model. More...

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

Public Types

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

Public Member Functions

 TypeName ("buoyantKEpsilon")
 Runtime type information. More...
 
 buoyantKEpsilon (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const viscosity &viscosity, const word &type=typeName)
 Construct from components. More...
 
 buoyantKEpsilon (const buoyantKEpsilon &)=delete
 Disallow default bitwise copy construction. More...
 
virtual ~buoyantKEpsilon ()
 Destructor. More...
 
virtual bool read ()
 Re-read model coefficients if they have changed. More...
 
void operator= (const buoyantKEpsilon &)=delete
 Disallow default bitwise assignment. More...
 
- Public Member Functions inherited from kEpsilon< BasicMomentumTransportModel >
 TypeName ("kEpsilon")
 Runtime type information. More...
 
 kEpsilon (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const viscosity &viscosity, const word &type=typeName)
 Construct from components. More...
 
 kEpsilon (const kEpsilon &)=delete
 Disallow default bitwise copy construction. More...
 
virtual ~kEpsilon ()
 Destructor. More...
 
tmp< volScalarFieldDkEff () const
 Return the effective diffusivity for k. More...
 
tmp< volScalarFieldDepsilonEff () const
 Return the effective diffusivity for epsilon. More...
 
virtual tmp< volScalarFieldk () const
 Return the turbulence kinetic energy. More...
 
virtual tmp< volScalarFieldepsilon () const
 Return the turbulence kinetic energy dissipation rate. More...
 
virtual tmp< volScalarFieldomega () const
 Return the turbulence specific dissipation rate. More...
 
virtual void correct ()
 Solve the turbulence equations and correct the turbulence viscosity. More...
 
void operator= (const kEpsilon &)=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 viscosity &viscosity)
 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< BasicMomentumTransportModel >
 linearViscousStress (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const viscosity &viscosity)
 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...
 

Protected Member Functions

tmp< volScalarFieldGcoef () const
 
virtual tmp< fvScalarMatrixkSource () const
 Source term for the k equation. More...
 
virtual tmp< fvScalarMatrixepsilonSource () const
 Source term for the epsilon equation. More...
 
- Protected Member Functions inherited from kEpsilon< BasicMomentumTransportModel >
tmp< volScalarFieldboundEpsilon ()
 Bound epsilon and return Cmu*sqr(k) for nut. More...
 
virtual void correctNut ()
 Correct the eddy-viscosity nut. More...
 

Protected Attributes

dimensionedScalar Cg_
 
- Protected Attributes inherited from kEpsilon< BasicMomentumTransportModel >
dimensionedScalar Cmu_
 
dimensionedScalar C1_
 
dimensionedScalar C2_
 
dimensionedScalar C3_
 
dimensionedScalar sigmak_
 
dimensionedScalar sigmaEps_
 
volScalarField k_
 
volScalarField epsilon_
 
- Protected Attributes inherited from eddyViscosity< RASModel< BasicMomentumTransportModel > >
volScalarField nut_
 

Detailed Description

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

Additional buoyancy generation/dissipation term applied to the k and epsilon equations of the standard k-epsilon model.

Reference:

    Henkes, R.A.W.M., Van Der Vlugt, F.F. & Hoogendoorn, C.J. (1991).
    Natural Convection Flow in a Square Cavity Calculated with
    Low-Reynolds-Number Turbulence Models.
    Int. J. Heat Mass Transfer, 34, 1543-1557.

This implementation is based on the density rather than temperature gradient extending the applicability to systems in which the density gradient may be generated by variation of composition rather than temperature. Further, the 1/Prt coefficient is replaced by Cg to provide more general control of model.

The default model coefficients are

    buoyantKEpsilonCoeffs
    {
        Cg              1.0;
    }
See also
Foam::RASModels::kEpsilon
Source files

Definition at line 77 of file buoyantKEpsilon.H.

Member Typedef Documentation

◆ alphaField

typedef BasicMomentumTransportModel::alphaField alphaField

Definition at line 100 of file buoyantKEpsilon.H.

◆ rhoField

typedef BasicMomentumTransportModel::rhoField rhoField

Definition at line 101 of file buoyantKEpsilon.H.

Constructor & Destructor Documentation

◆ buoyantKEpsilon() [1/2]

buoyantKEpsilon ( const alphaField alpha,
const rhoField rho,
const volVectorField U,
const surfaceScalarField alphaRhoPhi,
const surfaceScalarField phi,
const viscosity viscosity,
const word type = typeName 
)

Construct from components.

Definition at line 41 of file buoyantKEpsilon.C.

References Foam::type().

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◆ buoyantKEpsilon() [2/2]

buoyantKEpsilon ( const buoyantKEpsilon< BasicMomentumTransportModel > &  )
delete

Disallow default bitwise copy construction.

◆ ~buoyantKEpsilon()

virtual ~buoyantKEpsilon ( )
inlinevirtual

Destructor.

Definition at line 127 of file buoyantKEpsilon.H.

Member Function Documentation

◆ Gcoef()

tmp< volScalarField > Gcoef
protected

Definition at line 100 of file buoyantKEpsilon.C.

References Foam::fvc::grad().

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◆ kSource()

tmp< fvScalarMatrix > kSource
protectedvirtual

Source term for the k equation.

Reimplemented from kEpsilon< BasicMomentumTransportModel >.

Definition at line 114 of file buoyantKEpsilon.C.

References kEpsilon< BasicMomentumTransportModel >::kSource(), Foam::mag(), Foam::fvm::SuSp(), and UniformDimensionedField< Type >::value().

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◆ epsilonSource()

tmp< fvScalarMatrix > epsilonSource
protectedvirtual

Source term for the epsilon equation.

Reimplemented from kEpsilon< BasicMomentumTransportModel >.

Definition at line 133 of file buoyantKEpsilon.C.

References Foam::dimVelocity, kEpsilon< BasicMomentumTransportModel >::epsilonSource(), Foam::mag(), Foam::fvm::SuSp(), Foam::tanh(), and UniformDimensionedField< Type >::value().

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◆ TypeName()

TypeName ( "buoyantKEpsilon< BasicMomentumTransportModel >"  )

Runtime type information.

◆ read()

bool read
virtual

Re-read model coefficients if they have changed.

Reimplemented from kEpsilon< BasicMomentumTransportModel >.

Definition at line 83 of file buoyantKEpsilon.C.

◆ operator=()

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

Disallow default bitwise assignment.

Member Data Documentation

◆ Cg_

dimensionedScalar Cg_
protected

Definition at line 87 of file buoyantKEpsilon.H.


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