Implementation of the k-omega-SST turbulence model for incompressible and compressible flows. More...

Inheritance diagram for kOmegaSST< TurbulenceModel, BasicTurbulenceModel >:

Collaboration diagram for kOmegaSST< TurbulenceModel, BasicTurbulenceModel >:

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Public Types
typedef BasicTurbulenceModel::alphaField	alphaField

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

Public Types inherited from TurbulenceModel< Alpha, Rho, BasicTurbulenceModel, TransportModel >
typedef Alpha	alphaField

typedef Rho	rhoField

typedef TransportModel	transportModel

Public Member Functions
	kOmegaSST (const word &type, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName)
	Construct from components. More...

virtual	~kOmegaSST ()
	Destructor. More...

virtual bool	read ()
	Re-read model coefficients if they have changed. More...

tmp< volScalarField >	DkEff (const volScalarField &F1) const
	Return the effective diffusivity for k. More...

tmp< volScalarField >	DomegaEff (const volScalarField &F1) const
	Return the effective diffusivity for omega. 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 kinetic energy dissipation rate. More...

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

Public Member Functions inherited from TurbulenceModel< Alpha, Rho, BasicTurbulenceModel, TransportModel >
	declareRunTimeNewSelectionTable (autoPtr, TurbulenceModel, 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))

	TurbulenceModel (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName)
	Construct. More...

virtual	~TurbulenceModel ()
	Destructor. More...

const alphaField &	alpha () const
	Access function to phase fraction. More...

const transportModel &	transport () const
	Access function to incompressible transport model. More...

tmp< volScalarField >	nu () const
	Return the laminar viscosity. More...

tmp< scalarField >	nu (const label patchi) const
	Return the laminar viscosity on patchi. More...

Protected Member Functions
tmp< volScalarField >	F1 (const volScalarField &CDkOmega) const

tmp< volScalarField >	F2 () const

tmp< volScalarField >	F3 () const

tmp< volScalarField >	F23 () const

tmp< volScalarField >	blend (const volScalarField &F1, const dimensionedScalar &psi1, const dimensionedScalar &psi2) const

tmp< volScalarField >	alphaK (const volScalarField &F1) const

tmp< volScalarField >	alphaOmega (const volScalarField &F1) const

tmp< volScalarField >	beta (const volScalarField &F1) const

tmp< volScalarField >	gamma (const volScalarField &F1) const

void	correctNut (const volScalarField &S2, const volScalarField &F2)

virtual void	correctNut ()

virtual tmp< volScalarField >	epsilonByk (const volScalarField &F1, const volScalarField &F2) const
	Return epsilon/k which for standard RAS is betaStar*omega. More...

virtual tmp< fvScalarMatrix >	kSource () const

virtual tmp< fvScalarMatrix >	omegaSource () const

virtual tmp< fvScalarMatrix >	Qsas (const volScalarField &S2, const volScalarField &gamma, const volScalarField &beta) const

Protected Attributes
dimensionedScalar	alphaK1_

dimensionedScalar	alphaK2_

dimensionedScalar	alphaOmega1_

dimensionedScalar	alphaOmega2_

dimensionedScalar	gamma1_

dimensionedScalar	gamma2_

dimensionedScalar	beta1_

dimensionedScalar	beta2_

dimensionedScalar	betaStar_

dimensionedScalar	a1_

dimensionedScalar	b1_

dimensionedScalar	c1_

Switch	F3_

const volScalarField &	y_
	Wall distance. More...

volScalarField	k_

volScalarField	omega_

Protected Attributes inherited from TurbulenceModel< Alpha, Rho, BasicTurbulenceModel, TransportModel >
const alphaField &	alpha_

const transportModel &	transport_

Additional Inherited Members
Static Public Member Functions inherited from TurbulenceModel< Alpha, Rho, BasicTurbulenceModel, TransportModel >
static autoPtr< TurbulenceModel >	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 turbulence model. More...

Detailed Description

template<class TurbulenceModel, class BasicTurbulenceModel>
class Foam::kOmegaSST< TurbulenceModel, BasicTurbulenceModel >

Implementation of the k-omega-SST turbulence model for incompressible and compressible flows.

Turbulence model described in:

    Menter, F. R. & Esch, T. (2001).
    Elements of Industrial Heat Transfer Prediction.
    16th Brazilian Congress of Mechanical Engineering (COBEM).

with updated coefficients from

    Menter, F. R., Kuntz, M., and Langtry, R. (2003).
    Ten Years of Industrial Experience with the SST Turbulence Model.
    Turbulence, Heat and Mass Transfer 4, ed: K. Hanjalic, Y. Nagano,
    & M. Tummers, Begell House, Inc., 625 - 632.

but with the consistent production terms from the 2001 paper as form in the 2003 paper is a typo, see

    http://turbmodels.larc.nasa.gov/sst.html

and the addition of the optional F3 term for rough walls from

    Hellsten, A. (1998).
    "Some Improvements in Menter’s k-omega-SST turbulence model"
    29th AIAA Fluid Dynamics Conference, AIAA-98-2554.

Note that this implementation is written in terms of alpha diffusion coefficients rather than the more traditional sigma (alpha = 1/sigma) so that the blending can be applied to all coefficuients in a consistent manner. The paper suggests that sigma is blended but this would not be consistent with the blending of the k-epsilon and k-omega models.

Also note that the error in the last term of equation (2) relating to sigma has been corrected.

Wall-functions are applied in this implementation by using equations (14) to specify the near-wall omega as appropriate.

The blending functions (15) and (16) are not currently used because of the uncertainty in their origin, range of applicability and that if y+ becomes sufficiently small blending u_tau in this manner clearly becomes nonsense.

The default model coefficients are

    kOmegaSSTCoeffs
    {
        alphaK1     0.85;
        alphaK2     1.0;
        alphaOmega1 0.5;
        alphaOmega2 0.856;
        beta1       0.075;
        beta2       0.0828;
        betaStar    0.09;
        gamma1      5/9;
        gamma2      0.44;
        a1          0.31;
        b1          1.0;
        c1          10.0;
        F3          no;
    }

Source files

Definition at line 115 of file kOmegaSSTBase.H.

Member Typedef Documentation

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 229 of file kOmegaSSTBase.H.

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 230 of file kOmegaSSTBase.H.

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 231 of file kOmegaSSTBase.H.

Constructor & Destructor Documentation

kOmegaSST	(	const word &	type,
		const alphaField &	alpha,
		const rhoField &	rho,
		const volVectorField &	U,
		const surfaceScalarField &	alphaRhoPhi,
		const surfaceScalarField &	phi,
		const transportModel &	transport,
		const word &	propertiesName = `turbulenceModel::propertiesName`
	)

Construct from components.

Definition at line 201 of file kOmegaSSTBase.C.

References Foam::bound().

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virtual ~kOmegaSST ( )

inlinevirtual

Destructor.

Reimplemented in kOmegaSST< BasicTurbulenceModel >.

Definition at line 251 of file kOmegaSSTBase.H.

Member Function Documentation

tmp<volScalarField> F1 ( const volScalarField & CDkOmega ) const

protected

tmp<volScalarField> F2 ( ) const

protected

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp<volScalarField> F3 ( ) const

protected

tmp<volScalarField> F23 ( ) const

protected

tmp<volScalarField> blend	(	const volScalarField &	F1,
		const dimensionedScalar &	psi1,
		const dimensionedScalar &	psi2
	)		const

inlineprotected

Definition at line 172 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::alphaK(), kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::alphaOmega(), kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::beta(), and kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp<volScalarField> alphaK ( const volScalarField & F1 ) const

inlineprotected

Definition at line 181 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::DkEff().

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tmp<volScalarField> alphaOmega ( const volScalarField & F1 ) const

inlineprotected

Definition at line 186 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::DomegaEff().

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tmp<volScalarField> beta ( const volScalarField & F1 ) const

inlineprotected

Definition at line 191 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp<volScalarField> gamma ( const volScalarField & F1 ) const

inlineprotected

Definition at line 196 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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void correctNut	(	const volScalarField &	S2,
		const volScalarField &	F2
	)

protected

Definition at line 115 of file kOmegaSSTBase.C.

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

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void correctNut ( )

protectedvirtual

Reimplemented in kOmegaSSTSato< BasicTurbulenceModel >.

Definition at line 131 of file kOmegaSSTBase.C.

References kOmegaSST< TurbulenceModel, BasicTurbulenceModel >::epsilonByk(), Foam::fvc::grad(), Foam::magSqr(), and Foam::symm().

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp< volScalarField > epsilonByk	(	const volScalarField &	F1,
		const volScalarField &	F2
	)		const

protectedvirtual

Return epsilon/k which for standard RAS is betaStar*omega.

Reimplemented in kOmegaSSTDES< BasicTurbulenceModel >.

Definition at line 139 of file kOmegaSSTBase.C.

Referenced by kOmegaSST< TurbulenceModel, BasicTurbulenceModel >::correctNut(), and kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp< fvScalarMatrix > kSource ( ) const

protectedvirtual

Definition at line 150 of file kOmegaSSTBase.C.

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

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp< fvScalarMatrix > omegaSource ( ) const

protectedvirtual

Definition at line 165 of file kOmegaSSTBase.C.

References Foam::dimTime, Foam::dimVolume, and kOmegaSST< TurbulenceModel, BasicTurbulenceModel >::Qsas().

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma().

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tmp< fvScalarMatrix > Qsas	(	const volScalarField &	S2,
		const volScalarField &	gamma,
		const volScalarField &	beta
	)		const

protectedvirtual

Reimplemented in kOmegaSSTSAS< BasicTurbulenceModel >.

Definition at line 180 of file kOmegaSSTBase.C.

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

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::gamma(), and kOmegaSST< TurbulenceModel, BasicTurbulenceModel >::omegaSource().

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bool read ( )

virtual

Re-read model coefficients if they have changed.

Reimplemented in kOmegaSSTSato< BasicTurbulenceModel >, kOmegaSSTSAS< BasicTurbulenceModel >, and kOmegaSSTDES< BasicTurbulenceModel >.

Definition at line 377 of file kOmegaSSTBase.C.

References Foam::read().

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::~kOmegaSST().

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tmp<volScalarField> DkEff ( const volScalarField & F1 ) const

inline

Return the effective diffusivity for k.

Definition at line 261 of file kOmegaSSTBase.H.

tmp<volScalarField> DomegaEff ( const volScalarField & F1 ) const

inline

Return the effective diffusivity for omega.

Definition at line 270 of file kOmegaSSTBase.H.

virtual tmp<volScalarField> k ( ) const

inlinevirtual

Return the turbulence kinetic energy.

Definition at line 283 of file kOmegaSSTBase.H.

virtual tmp<volScalarField> epsilon ( ) const

inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Definition at line 289 of file kOmegaSSTBase.H.

virtual tmp<volScalarField> omega ( ) const

inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Definition at line 308 of file kOmegaSSTBase.H.

void correct ( )

virtual

Solve the turbulence equations and correct the turbulence viscosity.

Reimplemented in kOmegaSSTSato< BasicTurbulenceModel >.

Definition at line 405 of file kOmegaSSTBase.C.

References Foam::fvc::absolute(), beta(), Foam::bound(), fvMatrix< Type >::boundaryManipulate(), tmp< T >::clear(), optionList::constrain(), correct, optionList::correct(), Foam::fvm::ddt(), Foam::dev(), Foam::fvm::div(), Foam::fvc::div(), divU(), F1, fvOptions, Foam::constant::universal::G, Foam::fvc::grad(), Foam::fvm::laplacian(), Foam::magSqr(), Foam::max(), Foam::min(), options::New(), nut, phi, tmp< T >::ref(), fvMatrix< Type >::relax(), Foam::solve(), Foam::fvm::Sp(), Foam::sqrt(), Foam::fvm::SuSp(), Foam::symm(), and Foam::twoSymm().

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::omega().

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Member Data Documentation

dimensionedScalar alphaK1_

protected

Definition at line 132 of file kOmegaSSTBase.H.

dimensionedScalar alphaK2_

protected

Definition at line 133 of file kOmegaSSTBase.H.

dimensionedScalar alphaOmega1_

protected

Definition at line 135 of file kOmegaSSTBase.H.

dimensionedScalar alphaOmega2_

protected

Definition at line 136 of file kOmegaSSTBase.H.

dimensionedScalar gamma1_

protected

Definition at line 138 of file kOmegaSSTBase.H.

dimensionedScalar gamma2_

protected

Definition at line 139 of file kOmegaSSTBase.H.

dimensionedScalar beta1_

protected

Definition at line 141 of file kOmegaSSTBase.H.

dimensionedScalar beta2_

protected

Definition at line 142 of file kOmegaSSTBase.H.

dimensionedScalar betaStar_

protected

Definition at line 144 of file kOmegaSSTBase.H.

dimensionedScalar a1_

protected

Definition at line 146 of file kOmegaSSTBase.H.

dimensionedScalar b1_

protected

Definition at line 147 of file kOmegaSSTBase.H.

dimensionedScalar c1_

protected

Definition at line 148 of file kOmegaSSTBase.H.

Switch F3_

protected

Definition at line 150 of file kOmegaSSTBase.H.

const volScalarField& y_

protected

Wall distance.

Note: different to wall distance in parent RASModel which is for near-wall cells only

Definition at line 158 of file kOmegaSSTBase.H.

volScalarField k_

protected

Definition at line 160 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::k().

volScalarField omega_

protected

Definition at line 161 of file kOmegaSSTBase.H.

Referenced by kOmegaSST< LESeddyViscosity< BasicTurbulenceModel >, BasicTurbulenceModel >::omega().

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

src/TurbulenceModels/turbulenceModels/Base/kOmegaSST/kOmegaSSTBase.H
src/TurbulenceModels/turbulenceModels/Base/kOmegaSST/kOmegaSSTBase.C

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

template<class TurbulenceModel, class BasicTurbulenceModel> class Foam::kOmegaSST< TurbulenceModel, BasicTurbulenceModel >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class TurbulenceModel, class BasicTurbulenceModel>
class Foam::kOmegaSST< TurbulenceModel, BasicTurbulenceModel >