Langtry-Menter 4-equation transitional SST model based on the k-omega-SST RAS model. More...

Inheritance diagram for kOmegaSSTLM< BasicTurbulenceModel >:

Collaboration diagram for kOmegaSSTLM< BasicTurbulenceModel >:

Public Types
typedef BasicTurbulenceModel::alphaField	alphaField

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

Public Types inherited from kOmegaSST< BasicTurbulenceModel >
typedef BasicTurbulenceModel::alphaField	alphaField

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

Public Types inherited from kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >
typedef eddyViscosity< RASModel< BasicTurbulenceModel > > ::alphaField	alphaField

typedef eddyViscosity< RASModel< BasicTurbulenceModel > > ::rhoField	rhoField

typedef eddyViscosity< RASModel< 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 ("kOmegaSSTLM")
	Runtime type information. More...

	kOmegaSSTLM (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	~kOmegaSSTLM ()=default
	Destructor. More...

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

const volScalarField &	ReThetat () const
	Access function transition onset momentum-thickness Reynolds number. More...

const volScalarField &	gammaInt () const
	Access function to intermittency. More...

tmp< volScalarField >	DReThetatEff () const
	Return the effective diffusivity for transition onset. More...

tmp< volScalarField >	DgammaIntEff () const
	Return the effective diffusivity for intermittency. More...

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

Public Member Functions inherited from kOmegaSST< BasicTurbulenceModel >
	TypeName ("kOmegaSST")
	Runtime type information. More...

	kOmegaSST (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	~kOmegaSST ()=default
	Destructor. More...

Public Member Functions inherited from kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >
	kOmegaSSTBase (const kOmegaSSTBase &)=delete
	No copy construct. More...

	kOmegaSSTBase (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...

void	operator= (const kOmegaSSTBase &)=delete
	No copy assignment. More...

virtual	~kOmegaSSTBase ()=default
	Destructor. 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 >	omega () const
	Return the turbulence kinetic energy dissipation rate. 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 noexcept
	Return the lower allowable limit for k (default: SMALL) More...

const dimensionedScalar &	epsilonMin () const noexcept
	Return the lower allowable limit for epsilon (default: SMALL) More...

const dimensionedScalar &	omegaMin () const noexcept
	Return the lower allowable limit for omega (default: SMALL) More...

dimensionedScalar &	kMin () noexcept
	Allow kMin to be changed. More...

dimensionedScalar &	epsilonMin () noexcept
	Allow epsilonMin to be changed. More...

dimensionedScalar &	omegaMin () noexcept
	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 >	epsilon () const
	Return the turbulence kinetic energy dissipation rate. More...

Public Member Functions inherited from RASModelBase
	ClassName ("RASModelBase")
	Runtime type information. More...

	RASModelBase () noexcept=default
	Constructor. More...

virtual	~RASModelBase ()=default
	Destructor. More...

Protected Member Functions
virtual tmp< volScalarField >	F1 (const volScalarField &CDkOmega) const
	Modified form of the k-omega SST F1 function. More...

virtual tmp< volScalarField::Internal >	Pk (const volScalarField::Internal &G) const
	Modified form of the k-omega SST k production rate. More...

virtual tmp< volScalarField::Internal >	epsilonByk (const volScalarField &F1, const volTensorField &gradU) const
	Modified form of the k-omega SST epsilon/k. More...

tmp< volScalarField::Internal >	Fthetat (const volScalarField::Internal &Us, const volScalarField::Internal &Omega, const volScalarField::Internal &nu) const
	Freestream blending-function. More...

tmp< volScalarField::Internal >	ReThetac () const
	Empirical correlation for critical Reynolds number where the. More...

tmp< volScalarField::Internal >	Flength (const volScalarField::Internal &nu) const
	Empirical correlation that controls the length of the. More...

tmp< volScalarField::Internal >	Fonset (const volScalarField::Internal &Rev, const volScalarField::Internal &ReThetac, const volScalarField::Internal &RT) const
	Transition onset location control function. More...

tmp< volScalarField::Internal >	ReThetat0 (const volScalarField::Internal &Us, const volScalarField::Internal &dUsds, const volScalarField::Internal &nu) const
	Return the transition onset momentum-thickness Reynolds number. More...

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

Protected Member Functions inherited from kOmegaSST< BasicTurbulenceModel >
virtual void	correctNut (const volScalarField &S2)

virtual void	correctNut ()

Protected Member Functions inherited from kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >
void	setDecayControl (const dictionary &dict)
	Set decay control with kInf and omegaInf. More...

virtual tmp< volScalarField >	F2 () const

virtual tmp< volScalarField >	F3 () const

virtual tmp< volScalarField >	F23 () const

tmp< volScalarField >	blend (const volScalarField &F1, const dimensionedScalar &psi1, const dimensionedScalar &psi2) const
	Return the blended field. More...

tmp< volScalarField::Internal >	blend (const volScalarField::Internal &F1, const dimensionedScalar &psi1, const dimensionedScalar &psi2) const
	Return the internal blended field. More...

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

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

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

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

virtual tmp< volScalarField >	S2 (const volTensorField &gradU) const
	Return square of strain rate. More...

virtual tmp< volScalarField::Internal >	Pk (const volScalarField::Internal &G) const
	Return k production rate. More...

virtual tmp< volScalarField::Internal >	GbyNu0 (const volTensorField &gradU, const volScalarField &S2) const
	Return (G/nu)_0. More...

virtual tmp< volScalarField::Internal >	GbyNu (const volScalarField::Internal &GbyNu0, const volScalarField::Internal &F2, const volScalarField::Internal &S2) const
	Return G/nu. More...

virtual tmp< fvScalarMatrix >	kSource () const

virtual tmp< fvScalarMatrix >	omegaSource () const

virtual tmp< fvScalarMatrix >	Qsas (const volScalarField::Internal &S2, const volScalarField::Internal &gamma, const volScalarField::Internal &beta) 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	ca1_

dimensionedScalar	ca2_

dimensionedScalar	ce1_

dimensionedScalar	ce2_

dimensionedScalar	cThetat_

dimensionedScalar	sigmaThetat_

scalar	lambdaErr_
	Convergence criterion for the lambda/thetat loop. More...

label	maxLambdaIter_
	Maximum number of iterations to converge the lambda/thetat loop. More...

const dimensionedScalar	deltaU_
	Stabilization for division by the magnitude of the velocity. More...

volScalarField	ReThetat_
	Transition onset momentum-thickness Reynolds number. More...

volScalarField	gammaInt_
	Intermittency. More...

volScalarField::Internal	gammaIntEff_
	Effective intermittency. More...

Protected Attributes inherited from kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >
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_
	Flag to include the F3 term. More...

const volScalarField &	y_
	Wall distance. More...

volScalarField	k_
	Turbulent kinetic energy field [m^2/s^2]. More...

volScalarField	omega_
	Specific dissipation rate field [1/s]. More...

Switch	decayControl_
	Flag to include the decay control. More...

dimensionedScalar	kInf_

dimensionedScalar	omegaInf_

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::kOmegaSSTLM< BasicTurbulenceModel >

Langtry-Menter 4-equation transitional SST model based on the k-omega-SST RAS model.

References:

    Langtry, R. B., & Menter, F. R. (2009).
    Correlation-based transition modeling for unstructured parallelized
    computational fluid dynamics codes.
    AIAA journal, 47(12), 2894-2906.

    Menter, F. R., Langtry, R., & Volker, S. (2006).
    Transition modelling for general purpose CFD codes.
    Flow, turbulence and combustion, 77(1-4), 277-303.

    Langtry, R. B. (2006).
    A correlation-based transition model using local variables for
    unstructured parallelized CFD codes.
    Phd. Thesis, Universität Stuttgart.

The model coefficients are

    kOmegaSSTCoeffs
    {
        // Default SST coefficients
        alphaK1     0.85;
        alphaK2     1;
        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;
        c1          10;
        F3          no;

        // Default LM coefficients
        ca1         2;
        ca2         0.06;
        ce1         1;
        ce2         50;
        cThetat     0.03;
        sigmaThetat 2;

        lambdaErr   1e-6;
        maxLambdaIter 10;
    }

Source files

Definition at line 103 of file kOmegaSSTLM.H.

Member Typedef Documentation

◆ alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 250 of file kOmegaSSTLM.H.

◆ rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 251 of file kOmegaSSTLM.H.

◆ transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 252 of file kOmegaSSTLM.H.

Constructor & Destructor Documentation

◆ kOmegaSSTLM()

kOmegaSSTLM	(	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 360 of file kOmegaSSTLM.C.

References Foam::type().

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◆ ~kOmegaSSTLM()

virtual ~kOmegaSSTLM ( )

virtualdefault

Destructor.

Member Function Documentation

◆ F1()

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

protectedvirtual

Modified form of the k-omega SST F1 function.

Reimplemented from kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >.

Definition at line 37 of file kOmegaSSTLM.C.

References Foam::exp(), F3, Foam::max(), nu, Foam::pow(), Foam::Ry(), and Foam::sqrt().

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◆ Pk()

tmp< volScalarField::Internal > Pk ( const volScalarField::Internal & G ) const

protectedvirtual

Modified form of the k-omega SST k production rate.

Definition at line 50 of file kOmegaSSTLM.C.

References Foam::constant::universal::G, and kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >::Pk().

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◆ epsilonByk()

tmp< volScalarField::Internal > epsilonByk	(	const volScalarField &	F1,
		const volTensorField &	gradU
	)		const

protectedvirtual

Modified form of the k-omega SST epsilon/k.

Reimplemented from kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >.

Definition at line 60 of file kOmegaSSTLM.C.

References Foam::clamp(), kOmegaSSTBase< eddyViscosity< RASModel< BasicTurbulenceModel > > >::epsilonByk(), and F1.

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◆ Fthetat()

tmp< volScalarField::Internal > Fthetat	(	const volScalarField::Internal &	Us,
		const volScalarField::Internal &	Omega,
		const volScalarField::Internal &	nu
	)		const

protected

Freestream blending-function.

Definition at line 73 of file kOmegaSSTLM.C.

References delta, Foam::dimLength, Foam::exp(), IOobject::groupName(), Foam::max(), Foam::min(), nu, Foam::pow4(), Foam::sqr(), Us, and y.

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◆ ReThetac()

tmp< volScalarField::Internal > ReThetac ( ) const

protected

Empirical correlation for critical Reynolds number where the.

intermittency first starts to increase in the boundary layer

Definition at line 112 of file kOmegaSSTLM.C.

References Foam::dimless, forAll, IOobject::groupName(), Foam::pow3(), Foam::pow4(), and Foam::sqr().

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◆ Flength()

tmp< volScalarField::Internal > Flength ( const volScalarField::Internal & nu ) const

protected

Empirical correlation that controls the length of the.

transition region

Definition at line 153 of file kOmegaSSTLM.C.

References Foam::dimless, Foam::constant::electromagnetic::e, Foam::exp(), forAll, IOobject::groupName(), nu, Foam::pow3(), Foam::sqr(), and y.

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◆ Fonset()

tmp< volScalarField::Internal > Fonset	(	const volScalarField::Internal &	Rev,
		const volScalarField::Internal &	ReThetac,
		const volScalarField::Internal &	RT
	)		const

protected

Transition onset location control function.

Definition at line 330 of file kOmegaSSTLM.C.

References IOobject::groupName(), Foam::max(), Foam::min(), Foam::pow3(), and Foam::pow4().

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◆ ReThetat0()

tmp< volScalarField::Internal > ReThetat0	(	const volScalarField::Internal &	Us,
		const volScalarField::Internal &	dUsds,
		const volScalarField::Internal &	nu
	)		const