Lien and Kalitzin's v2-f turbulence model for incompressible and compressible flows, with a limit imposed on the turbulent viscosity given by Davidson et al. More...

Inheritance diagram for v2f< BasicMomentumTransportModel >:

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Collaboration diagram for v2f< BasicMomentumTransportModel >:

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Public Types
typedef BasicMomentumTransportModel::alphaField	alphaField

typedef BasicMomentumTransportModel::rhoField	rhoField

typedef BasicMomentumTransportModel::transportModel	transportModel

Public Types inherited from eddyViscosity< RASModel< BasicMomentumTransportModel > >
typedef RASModel< BasicMomentumTransportModel > ::alphaField	alphaField

typedef RASModel< BasicMomentumTransportModel > ::rhoField	rhoField

typedef RASModel< BasicMomentumTransportModel > ::transportModel	transportModel

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

typedef RASModel< BasicMomentumTransportModel > ::rhoField	rhoField

typedef RASModel< BasicMomentumTransportModel > ::transportModel	transportModel

Public Types inherited from RASModel< BasicMomentumTransportModel >
typedef BasicMomentumTransportModel::alphaField	alphaField

typedef BasicMomentumTransportModel::rhoField	rhoField

typedef BasicMomentumTransportModel::transportModel	transportModel

Public Member Functions
	TypeName ("v2f")
	Runtime type information. More...

	v2f (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &type=typeName)
	Construct from components. More...

virtual	~v2f ()
	Destructor. More...

virtual bool	read ()
	Read RASProperties dictionary. 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 >	v2 () const
	Return turbulence stress normal to streamlines. More...

virtual tmp< volScalarField >	f () const
	Return the damping function. More...

virtual void	correct ()
	Solve the turbulence equations and correct the turbulence viscosity. 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 transportModel &transport)
	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< RASModel< BasicMomentumTransportModel > >
	linearViscousStress (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
	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...

Public Member Functions inherited from RASModel< BasicMomentumTransportModel >
	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),(alpha, rho, U, alphaRhoPhi, phi, transport))

	RASModel (const word &type, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
	Construct from components. More...

	RASModel (const RASModel &)=delete
	Disallow default bitwise copy construction. More...

virtual	~RASModel ()
	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...

void	operator= (const RASModel &)=delete
	Disallow default bitwise assignment. More...

Public Member Functions inherited from v2fBase
	TypeName ("v2fBase")
	Runtime type information. More...

	v2fBase ()

virtual	~v2fBase ()
	Destructor. More...

Protected Member Functions
virtual void	correctNut ()

tmp< volScalarField >	Ts () const
	Return time scale, Ts. More...

tmp< volScalarField >	Ls () const
	Return length scale, Ls. More...

Protected Member Functions inherited from RASModel< BasicMomentumTransportModel >
virtual void	printCoeffs (const word &type)
	Print model coefficients. More...

Protected Attributes
dimensionedScalar	Cmu_

dimensionedScalar	CmuKEps_

dimensionedScalar	C1_

dimensionedScalar	C2_

dimensionedScalar	CL_

dimensionedScalar	Ceta_

dimensionedScalar	Ceps2_

dimensionedScalar	Ceps3_

dimensionedScalar	sigmaK_

dimensionedScalar	sigmaEps_

volScalarField	k_
	Turbulence kinetic energy. More...

volScalarField	epsilon_
	Turbulence dissipation. More...

volScalarField	v2_
	Turbulence stress normal to streamlines. More...

volScalarField	f_
	Damping function. More...

dimensionedScalar	v2Min_

dimensionedScalar	fMin_

Protected Attributes inherited from eddyViscosity< RASModel< BasicMomentumTransportModel > >
volScalarField	nut_

Protected Attributes inherited from RASModel< BasicMomentumTransportModel >
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< BasicMomentumTransportModel >
static autoPtr< RASModel >	New (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport)
	Return a reference to the selected RAS model. More...

Detailed Description

template<class BasicMomentumTransportModel>
class Foam::RASModels::v2f< BasicMomentumTransportModel >

Lien and Kalitzin's v2-f turbulence model for incompressible and compressible flows, with a limit imposed on the turbulent viscosity given by Davidson et al.

The model solves for turbulence kinetic energy k and turbulence dissipation rate epsilon, with additional equations for the turbulence stress normal to streamlines, v2, and elliptic damping function, f.

The variant implemented employs N=6, such that f=0 on walls.

Wall boundary conditions are:

k = kLowReWallFunction epsilon = epsilonWallFunction v2 = v2WallFunction f = fWallFunction

These are applicable to both low- and high-Reynolds number flows.

Inlet values can be approximated by:

v2 = 2/3 k f = zero-gradient

References:

    Lien, F. S., & Kalitzin, G. (2001).
    Computations of transonic flow with the v2f turbulence model.
    International Journal of Heat and Fluid Flow, 22(1), 53-61.

    Davidson, L., Nielsen, P., & Sveningsson, A. (2003).
    Modifications of the v2-f model for computing the flow in a
    3D wall jet.
    Turbulence, Heat and Mass Transfer, 4, 577-584

The default model coefficients are

    v2fCoeffs
    {
        Cmu         0.22;
        CmuKEps     0.09;
        C1          1.4;
        C2          0.3;
        CL          0.23;
        Ceta        70;
        Ceps2       1.9;
        Ceps3       -0.33;
        sigmaEps    1.3;
        sigmaK      1;
    }

Note: If the kLowReWallFunction is employed, a velocity variant of the turbulent viscosity wall function should be used, e.g. nutUWallFunction. Turbulence k variants (nutk...) for this case will not behave correctly.

See also: Foam::RASModels::v2fBase Foam::RASModels::kEpsilon Foam::kLowReWallFunctionFvPatchScalarField Foam::epsilonWallFunctionFvPatchScalarField Foam::v2WallFunctionFvPatchScalarField Foam::fWallFunctionFvPatchScalarField

Source files

v2f.H
v2f.C

Definition at line 117 of file v2f.H.

Member Typedef Documentation

◆ alphaField

typedef BasicMomentumTransportModel::alphaField alphaField

Definition at line 175 of file v2f.H.

◆ rhoField

typedef BasicMomentumTransportModel::rhoField rhoField

Definition at line 176 of file v2f.H.

◆ transportModel

typedef BasicMomentumTransportModel::transportModel transportModel

Definition at line 177 of file v2f.H.

Constructor & Destructor Documentation

◆ v2f()

v2f	(	const alphaField &	alpha,
		const rhoField &	rho,
		const volVectorField &	U,
		const surfaceScalarField &	alphaRhoPhi,
		const surfaceScalarField &	phi,
		const transportModel &	transport,
		const word &	type = `typeName`
	)