Standard k-epsilon turbulence model for incompressible and compressible flows including rapid distortion theory (RDT) based compression term. More...

Inheritance diagram for kEpsilon< BasicMomentumTransportModel >:

[legend]

Collaboration diagram for kEpsilon< BasicMomentumTransportModel >:

[legend]

Public Types
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 ("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...

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 tmp< volScalarField >	omega () 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< 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< volSymmTensorField >	sigma () 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< volSymmTensorField >	devTau () const
	Return the effective stress tensor. More...

virtual tmp< fvVectorMatrix >	divDevTau (volVectorField &U) const
	Return the source term for the momentum equation. More...

virtual tmp< fvVectorMatrix >	divDevTau (const volScalarField &rho, volVectorField &U) const
	Return the source term for the momentum equation. More...

Protected Member Functions
tmp< volScalarField >	boundEpsilon ()
	Bound epsilon and return Cmu*sqr(k) for nut. More...

virtual void	correctNut ()
	Correct the eddy-viscosity nut. More...

virtual tmp< fvScalarMatrix >	kSource () const
	Source term for the k equation. More...

virtual tmp< fvScalarMatrix >	epsilonSource () const
	Source term for the epsilon equation. More...

Protected Attributes
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::kEpsilon< BasicMomentumTransportModel >

Standard k-epsilon turbulence model for incompressible and compressible flows including rapid distortion theory (RDT) based compression term.

Reference:

    Standard model:
        Launder, B. E., & Spalding, D. B. (1972).
        Lectures in mathematical models of turbulence.

        Launder, B. E., & Spalding, D. B. (1974).
        The numerical computation of turbulent flows.
        Computer methods in applied mechanics and engineering,
        3(2), 269-289.

    For the RDT-based compression term:
        El Tahry, S. H. (1983).
        k-epsilon equation for compressible reciprocating engine flows.
        Journal of Energy, 7(4), 345-353.

The default model coefficients are

    kEpsilonCoeffs
    {
        Cmu         0.09;
        C1          1.44;
        C2          1.92;
        C3          0;
        sigmak      1.0;
        sigmaEps    1.3;
    }

Source files

Definition at line 83 of file kEpsilon.H.

Member Typedef Documentation

◆ alphaField

typedef BasicMomentumTransportModel::alphaField alphaField

Definition at line 123 of file kEpsilon.H.

◆ rhoField

typedef BasicMomentumTransportModel::rhoField rhoField

Definition at line 124 of file kEpsilon.H.

Constructor & Destructor Documentation

◆ kEpsilon() [1/2]

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