Mixture k-epsilon turbulence model for two-phase gas-liquid systems. More...

Inheritance diagram for mixtureKEpsilon< BasicTurbulenceModel >:

Collaboration diagram for mixtureKEpsilon< BasicTurbulenceModel >:

Public Types
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 ("mixtureKEpsilon")
	Runtime type information. More...

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

virtual bool	read ()
	Re-read model coefficients if they have changed. 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
wordList	epsilonBoundaryTypes (const volScalarField &epsilon) const

void	correctInletOutlet (volScalarField &vsf, const volScalarField &refVsf) const

void	initMixtureFields ()

virtual void	correctNut ()

tmp< volScalarField >	Ct2 () const

tmp< volScalarField >	rholEff () const

tmp< volScalarField >	rhogEff () const

tmp< volScalarField >	rhom () const

tmp< volScalarField >	mix (const volScalarField &fc, const volScalarField &fd) const

tmp< volScalarField >	mixU (const volScalarField &fc, const volScalarField &fd) const

tmp< surfaceScalarField >	mixFlux (const surfaceScalarField &fc, const surfaceScalarField &fd) const

tmp< volScalarField >	bubbleG () const

virtual tmp< fvScalarMatrix >	kSource () const

virtual tmp< fvScalarMatrix >	epsilonSource () const

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

tmp< volScalarField >	DepsilonEff (const volScalarField &nutm) const
	Return the effective diffusivity for epsilon. More...

virtual void	correctNut ()=0

Protected Attributes
dimensionedScalar	Cmu_

dimensionedScalar	C1_

dimensionedScalar	C2_

dimensionedScalar	C3_

dimensionedScalar	Cp_

dimensionedScalar	sigmak_

dimensionedScalar	sigmaEps_

volScalarField	k_

volScalarField	epsilon_

autoPtr< volScalarField >	Ct2_

autoPtr< volScalarField >	rhom_

autoPtr< volScalarField >	km_

autoPtr< volScalarField >	epsilonm_

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

Detailed Description

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

Mixture k-epsilon turbulence model for two-phase gas-liquid systems.

The basic structure of the model is based on:

    Behzadi, A., Issa, R. I., & Rusche, H. (2004).
    Modelling of dispersed bubble and droplet flow at high phase fractions.
    Chemical Engineering Science, 59(4), 759-770.

but an effective density for the gas is used in the averaging and an alternative model for bubble-generated turbulence from:

    Lahey Jr, R. T. (2005).
    The simulation of multidimensional multiphase flows.
    Nuclear Engineering and Design, 235(10), 1043-1060.

The default model coefficients are

    mixtureKEpsilonCoeffs
    {
        Cmu         0.09;
        C1          1.44;
        C2          1.92;
        C3          C2;
        sigmak      1.0;
        sigmaEps    1.3;
    }

Source files

Definition at line 86 of file mixtureKEpsilon.H.

Member Typedef Documentation

◆ alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 204 of file mixtureKEpsilon.H.

◆ rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 205 of file mixtureKEpsilon.H.

◆ transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 206 of file mixtureKEpsilon.H.

Constructor & Destructor Documentation

◆ mixtureKEpsilon()

mixtureKEpsilon	(	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`
	)