Additional buoyancy generation/dissipation term applied to the k and epsilon equations of the standard k-epsilon model. More...

Inheritance diagram for buoyantKEpsilon< BasicTurbulenceModel >:

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Collaboration diagram for buoyantKEpsilon< BasicTurbulenceModel >:

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Public Types
typedef BasicTurbulenceModel::alphaField	alphaField

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

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

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

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

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

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

typedef BasicTurbulenceModel::rhoField	rhoField

typedef BasicTurbulenceModel::transportModel	transportModel

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

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

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

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

	kEpsilon (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	~kEpsilon ()=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 bool	read ()=0
	Re-read model coefficients if they have changed. 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< volScalarField >	k () const=0
	Return the turbulence kinetic energy. More...

virtual tmp< volSymmTensorField >	R () const
	Return the Reynolds stress tensor. More...

virtual void	validate ()
	Validate the turbulence fields after construction. More...

virtual void	correct ()=0
	Solve the turbulence equations and correct the turbulence viscosity. More...

Public Member Functions inherited from linearViscousStress< 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 bool	read ()=0
	Re-read model coefficients if they have changed. 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...

virtual void	correct ()=0
	Solve the turbulence equations and correct the turbulence viscosity. More...

Protected Member Functions
tmp< volScalarField >	Gcoef () const

virtual tmp< fvScalarMatrix >	kSource () const

virtual tmp< fvScalarMatrix >	epsilonSource () const

Protected Member Functions inherited from kEpsilon< BasicTurbulenceModel >
virtual void	correctNut ()

virtual tmp< fvScalarMatrix >	kSource () const

virtual tmp< fvScalarMatrix >	epsilonSource () const

virtual void	correctNut ()=0

Protected Attributes
dimensionedScalar	Cg_

Protected Attributes inherited from kEpsilon< BasicTurbulenceModel >
dimensionedScalar	Cmu_

dimensionedScalar	C1_

dimensionedScalar	C2_

dimensionedScalar	C3_

dimensionedScalar	sigmak_

dimensionedScalar	sigmaEps_

volScalarField	k_

volScalarField	epsilon_

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

Detailed Description

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

Additional buoyancy generation/dissipation term applied to the k and epsilon equations of the standard k-epsilon model.

Reference:

    Henkes, R.A.W.M., Van Der Vlugt, F.F. & Hoogendoorn, C.J. (1991).
    Natural Convection Flow in a Square Cavity Calculated with
    Low-Reynolds-Number Turbulence Models.
    Int. J. Heat Mass Transfer, 34, 1543-1557.

This implementation is based on the density rather than temperature gradient extending the applicability to systems in which the density gradient may be generated by variation of composition rather than temperature. Further, the 1/Prt coefficient is replaced by Cg to provide more general control of model.

The default model coefficients are

    buoyantKEpsilonCoeffs
    {
        Cg              1.0;
    }

See also: Foam::RASModels::kEpsilon

Source files

Definition at line 83 of file buoyantKEpsilon.H.

Member Typedef Documentation

◆ alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 114 of file buoyantKEpsilon.H.

◆ rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 115 of file buoyantKEpsilon.H.

◆ transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 116 of file buoyantKEpsilon.H.

Constructor & Destructor Documentation

◆ buoyantKEpsilon()

buoyantKEpsilon	(	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`
	)