RNGkEpsilon< BasicTurbulenceModel > Class Template Reference

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

Inheritance diagram for RNGkEpsilon< BasicTurbulenceModel >:

Collaboration diagram for RNGkEpsilon< BasicTurbulenceModel >:

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

Public Member Functions
	TypeName ("RNGkEpsilon")
	Runtime type information. More...
	RNGkEpsilon (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	~RNGkEpsilon ()=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 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 >	R () const
	Return the Reynolds stress tensor. More...
virtual void	validate ()
	Validate the turbulence fields after construction. More...
Public Member Functions inherited from linearViscousStress< RASModel< 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 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...
Public Member Functions inherited from RASModel< BasicTurbulenceModel >
	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, const word &propertiesName),(alpha, rho, U, alphaRhoPhi, phi, transport, propertiesName))
	RASModel (const word &type, 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	~RASModel ()=default
	Destructor. More...
const dimensionedScalar &	kMin () const
	Return the lower allowable limit for k (default: SMALL) More...
const dimensionedScalar &	epsilonMin () const
	Return the lower allowable limit for epsilon (default: SMALL) More...
const dimensionedScalar &	omegaMin () const
	Return the lower allowable limit for omega (default: SMALL) More...
dimensionedScalar &	kMin ()
	Allow kMin to be changed. More...
dimensionedScalar &	epsilonMin ()
	Allow epsilonMin to be changed. More...
dimensionedScalar &	omegaMin ()
	Allow omegaMin to be changed. More...
virtual const dictionary &	coeffDict () const
	Const access to the coefficients dictionary. More...
virtual tmp< volScalarField >	nuEff () const
	Return the effective viscosity. More...
virtual tmp< scalarField >	nuEff (const label patchi) const
	Return the effective viscosity on patch. More...
virtual tmp< volScalarField >	omega () const
	Return the specific dissipation rate. More...

Protected Member Functions
virtual void	correctNut ()
virtual tmp< fvScalarMatrix >	kSource () const
virtual tmp< fvScalarMatrix >	epsilonSource () const
Protected Member Functions inherited from RASModel< BasicTurbulenceModel >
virtual void	printCoeffs (const word &type)
	Print model coefficients. More...
	RASModel (const RASModel &)=delete
	No copy construct. More...
void	operator= (const RASModel &)=delete
	No copy assignment. More...

Protected Attributes
dimensionedScalar	Cmu_
dimensionedScalar	C1_
dimensionedScalar	C2_
dimensionedScalar	C3_
dimensionedScalar	sigmak_
dimensionedScalar	sigmaEps_
dimensionedScalar	eta0_
dimensionedScalar	beta_
volScalarField	k_
volScalarField	epsilon_
Protected Attributes inherited from eddyViscosity< RASModel< BasicTurbulenceModel > >
volScalarField	nut_
Protected Attributes inherited from RASModel< BasicTurbulenceModel >
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< BasicTurbulenceModel >
static autoPtr< RASModel >	New (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName)
	Return a reference to the selected RAS model. More...

Detailed Description

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

Renormalization group k-epsilon turbulence model for incompressible and compressible flows.

Reference:

    Yakhot, V., Orszag, S. A., Thangam, S.,
    Gatski, T. B., & Speziale, C. G. (1992).
    Development of turbulence models for shear flows
    by a double expansion technique.
    Physics of Fluids A: Fluid Dynamics (1989-1993), 4(7), 1510-1520.

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

    RNGkEpsilonCoeffs
    {
        Cmu         0.0845;
        C1          1.42;
        C2          1.68;
        C3          -0.33;
        sigmak      0.71942;
        sigmaEps    0.71942;
        eta0        4.38;
        beta        0.012;
    }

Source files

• RNGkEpsilon.H
• RNGkEpsilon.C

Definition at line 88 of file RNGkEpsilon.H.

Member Typedef Documentation

alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 132 of file RNGkEpsilon.H.

rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 133 of file RNGkEpsilon.H.

transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 134 of file RNGkEpsilon.H.

Constructor & Destructor Documentation

RNGkEpsilon()

RNGkEpsilon	(	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 87 of file RNGkEpsilon.C.

References Foam::bound(), and Foam::type().

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~RNGkEpsilon()

virtual ~RNGkEpsilon ( )

virtualdefault

Destructor.

Member Function Documentation

correctNut()

void correctNut ( )

protectedvirtual

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 43 of file RNGkEpsilon.C.

References optionList::correct(), options::New(), and Foam::sqr().

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kSource()

tmp< fvScalarMatrix > kSource ( ) const

protectedvirtual

Definition at line 54 of file RNGkEpsilon.C.

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

epsilonSource()

tmp< fvScalarMatrix > epsilonSource ( ) const

protectedvirtual

Definition at line 69 of file RNGkEpsilon.C.

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

TypeName()

TypeName

(

"RNGkEpsilon< BasicTurbulenceModel >"

)

Runtime type information.

read()

bool read ( )

virtual

Re-read model coefficients if they have changed.

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 221 of file RNGkEpsilon.C.

References Foam::read().

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DkEff()

tmp<volScalarField> DkEff ( ) const

inline

Return the effective diffusivity for k.

Definition at line 167 of file RNGkEpsilon.H.

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

DepsilonEff()

tmp<volScalarField> DepsilonEff ( ) const

inline

Return the effective diffusivity for epsilon.

Definition at line 180 of file RNGkEpsilon.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 193 of file RNGkEpsilon.H.

References RNGkEpsilon< BasicTurbulenceModel >::k_.

epsilon()

virtual tmp<volScalarField> epsilon ( ) const

inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Reimplemented from RASModel< BasicTurbulenceModel >.

Definition at line 199 of file RNGkEpsilon.H.

References RNGkEpsilon< BasicTurbulenceModel >::epsilon_.

correct()

void correct ( )

virtual

Solve the turbulence equations and correct the turbulence viscosity.

Implements eddyViscosity< RASModel< BasicTurbulenceModel > >.

Definition at line 242 of file RNGkEpsilon.C.

References Foam::fvc::absolute(), Foam::constant::atomic::alpha, Foam::bound(), tmp< T >::clear(), correct(), Foam::fvm::ddt(), Foam::dev(), Foam::fvm::div(), Foam::fvc::div(), divU, fvOptions, Foam::constant::universal::G, Foam::fvc::grad(), Foam::fvm::laplacian(), Foam::mag(), options::New(), nut, phi, R, tmp< T >::ref(), rho, Foam::solve(), Foam::fvm::Sp(), Foam::sqr(), Foam::sqrt(), Foam::fvm::SuSp(), Foam::twoSymm(), and U.

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Member Data Documentation

Cmu_

dimensionedScalar Cmu_

protected

Definition at line 107 of file RNGkEpsilon.H.

C1_

dimensionedScalar C1_

protected

Definition at line 108 of file RNGkEpsilon.H.

C2_

dimensionedScalar C2_

protected

Definition at line 109 of file RNGkEpsilon.H.

C3_

dimensionedScalar C3_

protected

Definition at line 110 of file RNGkEpsilon.H.

sigmak_

dimensionedScalar sigmak_

protected

Definition at line 111 of file RNGkEpsilon.H.

sigmaEps_

dimensionedScalar sigmaEps_

protected

Definition at line 112 of file RNGkEpsilon.H.

eta0_

dimensionedScalar eta0_

protected

Definition at line 113 of file RNGkEpsilon.H.

beta_

dimensionedScalar beta_

protected

Definition at line 114 of file RNGkEpsilon.H.

k_

volScalarField k_

protected

Definition at line 119 of file RNGkEpsilon.H.

Referenced by RNGkEpsilon< BasicTurbulenceModel >::k().

epsilon_

volScalarField epsilon_

protected

Definition at line 120 of file RNGkEpsilon.H.

Referenced by RNGkEpsilon< BasicTurbulenceModel >::epsilon().

---

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

• src/TurbulenceModels/turbulenceModels/RAS/RNGkEpsilon/RNGkEpsilon.H
• src/TurbulenceModels/turbulenceModels/RAS/RNGkEpsilon/RNGkEpsilon.C