Gibson and Dafa'Alla's q-zeta two-equation low-Re turbulence model for incompressible flows. More...

Inheritance diagram for qZeta:

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Public Member Functions
	TypeName ("qZeta")
	Runtime type information. More...

	qZeta (const geometricOneField &alpha, const geometricOneField &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	~qZeta ()
	Destructor. More...

virtual bool	read ()
	Read RASProperties dictionary. More...

const dimensionedScalar &	qMin () const
	Return the lower allowable limit for q (default: SMALL) More...

const dimensionedScalar &	zetaMin () const
	Return the lower allowable limit for zeta (default: SMALL) More...

dimensionedScalar &	qMin ()
	Allow qMin to be changed. More...

dimensionedScalar &	zetaMin ()
	Allow zetaMin to be changed. More...

tmp< volScalarField >	DqEff () const
	Return the effective diffusivity for q. More...

tmp< volScalarField >	DzetaEff () 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 const volScalarField &	q () const

virtual const volScalarField &	zeta () const

virtual void	correct ()
	Solve the turbulence equations and correct the turbulence viscosity. More...

Public Member Functions inherited from eddyViscosity< incompressible::RASModel >
	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 ()
	Destructor. More...

volScalarField &	evNut ()
	Return non-const access to the turbulence viscosity. 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< incompressible::RASModel >
	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 ()
	Destructor. More...

virtual tmp< volSymmTensorField >	devRhoReff () const
	Return the effective stress tensor. 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...

Protected Member Functions
tmp< volScalarField >	fMu () const

tmp< volScalarField >	f2 () const

virtual void	correctNut ()

Protected Attributes
dimensionedScalar	Cmu_

dimensionedScalar	C1_

dimensionedScalar	C2_

dimensionedScalar	sigmaZeta_

Switch	anisotropic_

dimensionedScalar	qMin_
	Lower limit of q. More...

dimensionedScalar	zetaMin_
	Lower limit of zeta. More...

volScalarField	k_

volScalarField	epsilon_

volScalarField	q_

volScalarField	zeta_

Protected Attributes inherited from eddyViscosity< incompressible::RASModel >
volScalarField	nut_

Additional Inherited Members
Public Types inherited from eddyViscosity< incompressible::RASModel >
typedef incompressible::RASModel::alphaField	alphaField

typedef incompressible::RASModel::rhoField	rhoField

typedef incompressible::RASModel::transportModel	transportModel

Public Types inherited from linearViscousStress< incompressible::RASModel >
typedef incompressible::RASModel::alphaField	alphaField

typedef incompressible::RASModel::rhoField	rhoField

typedef incompressible::RASModel::transportModel	transportModel

Detailed Description

Gibson and Dafa'Alla's q-zeta two-equation low-Re turbulence model for incompressible flows.

This turbulence model is described in:

    Dafa'Alla, A.A., Juntasaro, E. & Gibson, M.M. (1996).
    Calculation of oscillating boundary layers with the
    q-zeta turbulence model.
    Engineering Turbulence Modelling and Experiments 3:
    Proceedings of the Third International Symposium,
    Crete, Greece, May 27-29, 141.

which is a development of the original q-zeta model described in:

    Gibson, M. M., & Dafa'Alla, A. A. (1995).
    Two-equation model for turbulent wall flow.
    AIAA journal, 33(8), 1514-1518.

Source files

Definition at line 73 of file qZeta.H.

Constructor & Destructor Documentation

qZeta	(	const geometricOneField &	alpha,
		const geometricOneField &	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 80 of file qZeta.C.

References Foam::bound(), qZeta::zeta_, and qZeta::zetaMin_.

Referenced by qZeta::correctNut().

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virtual ~qZeta ( )

inlinevirtual

Destructor.

Definition at line 134 of file qZeta.H.

References qZeta::read().

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Member Function Documentation

tmp< volScalarField > fMu ( ) const

protected

Definition at line 46 of file qZeta.C.

References qZeta::anisotropic_, Foam::exp(), qZeta::k_, nu, Foam::pow3(), qZeta::q_, Foam::sqr(), and qZeta::zeta_.

Referenced by qZeta::correctNut().

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tmp< volScalarField > f2 ( ) const

protected

Definition at line 63 of file qZeta.C.

References Foam::exp(), qZeta::k_, nu, qZeta::q_, Foam::sqr(), and qZeta::zeta_.

Referenced by qZeta::correct().

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void correctNut ( )

protectedvirtual

Implements eddyViscosity< incompressible::RASModel >.

Definition at line 70 of file qZeta.C.

References qZeta::Cmu_, GeometricField< Type, PatchField, GeoMesh >::correctBoundaryConditions(), qZeta::epsilon_, qZeta::fMu(), qZeta::k_, eddyViscosity< incompressible::RASModel >::nut_, qZeta::qZeta(), and Foam::sqr().

Referenced by qZeta::correct().

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TypeName ( "qZeta" )

Runtime type information.

bool read ( )

virtual

Read RASProperties dictionary.

Implements eddyViscosity< incompressible::RASModel >.

Definition at line 217 of file qZeta.C.

References qZeta::anisotropic_, qZeta::C1_, qZeta::C2_, qZeta::Cmu_, qZeta::qMin_, Switch::readIfPresent(), dimensioned< Type >::readIfPresent(), qZeta::sigmaZeta_, and qZeta::zetaMin_.

Referenced by qZeta::~qZeta().

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const dimensionedScalar& qMin ( ) const

inline

Return the lower allowable limit for q (default: SMALL)

Definition at line 144 of file qZeta.H.

References qZeta::qMin_.

const dimensionedScalar& zetaMin ( ) const

inline

Return the lower allowable limit for zeta (default: SMALL)

Definition at line 150 of file qZeta.H.

References qZeta::zetaMin_.

dimensionedScalar& qMin ( )

inline

Allow qMin to be changed.

Definition at line 156 of file qZeta.H.

References qZeta::qMin_.

dimensionedScalar& zetaMin ( )

inline

Allow zetaMin to be changed.

Definition at line 162 of file qZeta.H.

References qZeta::zetaMin_.

tmp<volScalarField> DqEff ( ) const

inline

Return the effective diffusivity for q.

Definition at line 168 of file qZeta.H.

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

Referenced by qZeta::correct().

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tmp<volScalarField> DzetaEff ( ) const

inline

Return the effective diffusivity for epsilon.

Definition at line 177 of file qZeta.H.

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

Referenced by qZeta::correct().

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virtual tmp<volScalarField> k ( ) const

inlinevirtual

Return the turbulence kinetic energy.

Implements eddyViscosity< incompressible::RASModel >.

Definition at line 186 of file qZeta.H.

References qZeta::k_.

virtual tmp<volScalarField> epsilon ( ) const

inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Definition at line 192 of file qZeta.H.

References qZeta::epsilon_.

virtual const volScalarField& q ( ) const

inlinevirtual

Definition at line 197 of file qZeta.H.

References qZeta::q_.

virtual const volScalarField& zeta ( ) const

inlinevirtual

Definition at line 202 of file qZeta.H.

References qZeta::correct(), and qZeta::zeta_.

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void correct ( )

virtual

Solve the turbulence equations and correct the turbulence viscosity.

Implements eddyViscosity< incompressible::RASModel >.

Definition at line 239 of file qZeta.C.

References Foam::bound(), qZeta::C1_, qZeta::C2_, eddyViscosity< BasicTurbulenceModel >::correct(), GeometricField< Type, PatchField, GeoMesh >::correctBoundaryConditions(), qZeta::correctNut(), Foam::fvm::ddt(), Foam::fvm::div(), qZeta::DqEff(), qZeta::DzetaEff(), qZeta::epsilon_, qZeta::f2(), Foam::constant::universal::G, Foam::fvc::grad(), qZeta::k_, Foam::fvm::laplacian(), Foam::magSqr(), Foam::fvc::magSqrGradGrad(), nu, eddyViscosity< incompressible::RASModel >::nut_, qZeta::q_, qZeta::qMin_, tmp< T >::ref(), Foam::solve(), Foam::fvm::Sp(), Foam::sqr(), Foam::fvm::SuSp(), Foam::symm(), qZeta::zeta_, and qZeta::zetaMin_.

Referenced by qZeta::zeta().

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Member Data Documentation

dimensionedScalar Cmu_

protected

Definition at line 84 of file qZeta.H.

Referenced by qZeta::correctNut(), and qZeta::read().

dimensionedScalar C1_

protected

Definition at line 85 of file qZeta.H.

Referenced by qZeta::correct(), and qZeta::read().

dimensionedScalar C2_

protected

Definition at line 86 of file qZeta.H.

Referenced by qZeta::correct(), and qZeta::read().

dimensionedScalar sigmaZeta_

protected

Definition at line 87 of file qZeta.H.

Referenced by qZeta::read().

Switch anisotropic_

protected

Definition at line 88 of file qZeta.H.

Referenced by qZeta::fMu(), and qZeta::read().

dimensionedScalar qMin_

protected

Lower limit of q.

Definition at line 91 of file qZeta.H.

Referenced by qZeta::correct(), qZeta::qMin(), and qZeta::read().

dimensionedScalar zetaMin_

protected

Lower limit of zeta.

Definition at line 94 of file qZeta.H.

Referenced by qZeta::correct(), qZeta::qZeta(), qZeta::read(), and qZeta::zetaMin().

volScalarField k_

protected

Definition at line 98 of file qZeta.H.

Referenced by qZeta::correct(), qZeta::correctNut(), qZeta::f2(), qZeta::fMu(), and qZeta::k().

volScalarField epsilon_

protected

Definition at line 99 of file qZeta.H.

Referenced by qZeta::correct(), qZeta::correctNut(), and qZeta::epsilon().

volScalarField q_

protected

Definition at line 101 of file qZeta.H.

Referenced by qZeta::correct(), qZeta::f2(), qZeta::fMu(), and qZeta::q().

volScalarField zeta_

protected

Definition at line 102 of file qZeta.H.

Referenced by qZeta::correct(), qZeta::f2(), qZeta::fMu(), qZeta::qZeta(), and qZeta::zeta().

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

src/TurbulenceModels/incompressible/turbulentTransportModels/RAS/qZeta/qZeta.H
src/TurbulenceModels/incompressible/turbulentTransportModels/RAS/qZeta/qZeta.C

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation