kEpsilon Class Reference

Standard k-epsilon turbulence model for compressible flows. More...

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List of all members.

Public Member Functions
	TypeName ("kEpsilon")
	Runtime type information.
	kEpsilon (const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi, const basicThermo &thermophysicalModel)
	Construct from components.
virtual	~kEpsilon ()
	Destructor.
tmp< volScalarField >	DkEff () const
	Return the effective diffusivity for k.
tmp< volScalarField >	DepsilonEff () const
	Return the effective diffusivity for epsilon.
virtual tmp< volScalarField >	mut () const
	Return the turbulence viscosity.
virtual tmp< volScalarField >	alphaEff () const
	Return the effective turbulent thermal diffusivity.
virtual tmp< volScalarField >	k () const
	Return the turbulence kinetic energy.
virtual tmp< volScalarField >	epsilon () const
	Return the turbulence kinetic energy dissipation rate.
virtual tmp< volSymmTensorField >	R () const
	Return the Reynolds stress tensor.
virtual tmp< volSymmTensorField >	devRhoReff () const
	Return the effective stress tensor including the laminar stress.
virtual tmp< fvVectorMatrix >	divDevRhoReff (volVectorField &U) const
	Return the source term for the momentum equation.
virtual void	correct ()
	Solve the turbulence equations and correct the turbulence viscosity.
virtual bool	read ()
	Read RASProperties dictionary.

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Detailed Description

Standard k-epsilon turbulence model for compressible flows.

The default model coefficients correspond to the following:

    kEpsilonCoeffs
    {
        Cmu         0.09;
        C1          1.44;
        C2          1.92;
        C3          -0.33;  // only for compressible
        sigmak      1.0;    // only for compressible
        sigmaEps    1.3;
        Prt         1.0;    // only for compressible
    }

Source files

• kEpsilon.H
• kEpsilon.C
• kEpsilonCorrect.C

Definition at line 63 of file kEpsilon.H.

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Constructor & Destructor Documentation

kEpsilon	(	const volScalarField &	rho,
		const volVectorField &	U,
		const surfaceScalarField &	phi,
		const basicThermo &	thermophysicalModel
	)

Construct from components.

Definition at line 40 of file kEpsilon.C.

References RASModel::epsilonSmall_, and turbulenceModel::rho_.

virtual ~kEpsilon

(

)

[inline, virtual]

Destructor.

Definition at line 105 of file kEpsilon.H.

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Member Function Documentation

TypeName

(

"kEpsilon"

)

Runtime type information.

tmp<volScalarField> DkEff

(

)

const [inline]

Return the effective diffusivity for k.

Definition at line 112 of file kEpsilon.H.

tmp<volScalarField> DepsilonEff

(

)

const [inline]

Return the effective diffusivity for epsilon.

Definition at line 121 of file kEpsilon.H.

virtual tmp<volScalarField> mut

(

)

const [inline, virtual]

Return the turbulence viscosity.

Implements RASModel.

Definition at line 130 of file kEpsilon.H.

Referenced by kEpsilon::alphaEff().

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virtual tmp<volScalarField> alphaEff

(

)

const [inline, virtual]

Return the effective turbulent thermal diffusivity.

Implements RASModel.

Definition at line 136 of file kEpsilon.H.

References kEpsilon::mut().

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virtual tmp<volScalarField> k

(

)

const [inline, virtual]

Return the turbulence kinetic energy.

Implements RASModel.

Definition at line 145 of file kEpsilon.H.

References turbulenceModel::alpha().

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virtual tmp<volScalarField> epsilon

(

)

const [inline, virtual]

Return the turbulence kinetic energy dissipation rate.

Implements RASModel.

Definition at line 151 of file kEpsilon.H.

tmp< volSymmTensorField > R

(

)

const [virtual]

Return the Reynolds stress tensor.

Implements RASModel.

Definition at line 174 of file kEpsilon.C.

References RASModel::printCoeffs().

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tmp< volSymmTensorField > devRhoReff

(

)

const [virtual]

Return the effective stress tensor including the laminar stress.

Implements RASModel.

Definition at line 195 of file kEpsilon.C.

tmp< fvVectorMatrix > divDevRhoReff

(

volVectorField &

U

)

const [virtual]

Return the source term for the momentum equation.

Implements RASModel.

Definition at line 215 of file kEpsilon.C.

void correct

(

)

[virtual]

Solve the turbulence equations and correct the turbulence viscosity.

Implements RASModel.

Definition at line 246 of file kEpsilon.C.

bool read

(

)

[virtual]

Read RASProperties dictionary.

Implements RASModel.

Definition at line 225 of file kEpsilon.C.

References Foam::dev2(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), muEff(), and Foam::T().

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

• src/turbulenceModels/compressible/RAS/kEpsilon/kEpsilon.H
• src/turbulenceModels/compressible/RAS/kEpsilon/kEpsilon.C