Implementation of the k-omega-SST turbulence model for dispersed bubbly flows with Sato (1981) bubble induced turbulent viscosity model. More...

Inheritance diagram for kOmegaSSTSato< BasicMomentumTransportModel >:

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Collaboration diagram for kOmegaSSTSato< BasicMomentumTransportModel >:

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Public Types
typedef BasicMomentumTransportModel::alphaField	alphaField

typedef BasicMomentumTransportModel::rhoField	rhoField

typedef BasicMomentumTransportModel::transportModel	transportModel

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

typedef BasicMomentumTransportModel::rhoField	rhoField

typedef BasicMomentumTransportModel::transportModel	transportModel

Public Types inherited from kOmegaSST< eddyViscosity< RASModel< BasicMomentumTransportModel > >, BasicMomentumTransportModel >
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 ("kOmegaSSTSato")
	Runtime type information. More...

	kOmegaSSTSato (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...

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

virtual	~kOmegaSSTSato ()
	Destructor. More...

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

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

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

Public Member Functions inherited from kOmegaSST< BasicMomentumTransportModel >
	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 &type=typeName)
	Construct from components. More...

virtual	~kOmegaSST ()
	Destructor. More...

Public Member Functions inherited from kOmegaSST< eddyViscosity< RASModel< BasicMomentumTransportModel > >, BasicMomentumTransportModel >
	kOmegaSST (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...

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

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

Protected Member Functions
virtual void	correctNut (const volScalarField &S2, const volScalarField &F2)

Protected Member Functions inherited from kOmegaSST< eddyViscosity< RASModel< BasicMomentumTransportModel > >, BasicMomentumTransportModel >
virtual tmp< volScalarField >	F1 (const volScalarField &CDkOmega) const

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

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

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 void	correctNut ()

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

virtual tmp< volScalarField::Internal >	epsilonByk (const volScalarField::Internal &F1, const volScalarField::Internal &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::Internal &S2, const volScalarField::Internal &gamma, const volScalarField::Internal &beta) const

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

Protected Attributes
dimensionedScalar	Cmub_

Protected Attributes inherited from kOmegaSST< eddyViscosity< RASModel< BasicMomentumTransportModel > >, BasicMomentumTransportModel >
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 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::kOmegaSSTSato< BasicMomentumTransportModel >

Implementation of the k-omega-SST turbulence model for dispersed bubbly flows with Sato (1981) bubble induced turbulent viscosity model.

Bubble induced turbulent viscosity model described in:

    Sato, Y., Sadatomi, M.
    "Momentum and heat transfer in two-phase bubble flow - I, Theory"
    International Journal of Multiphase FLow 7, pp. 167-177, 1981.

Turbulence model described in:

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

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

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

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 coefficients 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 as y+ becomes sufficiently small blending u_tau in this manner is clearly nonsense.

The default model coefficients correspond to the following:

    kOmegaSSTCoeffs
    {
        alphaK1     0.85034;
        alphaK2     1.0;
        alphaOmega1 0.5;
        alphaOmega2 0.85616;
        Prt         1.0;    // only for compressible
        beta1       0.075;
        beta2       0.0828;
        betaStar    0.09;
        gamma1      0.5532;
        gamma2      0.4403;
        a1          0.31;
        b1          1.0;
        c1          10.0;
        F3          no;
        Cmub        0.6;
    }

Source files

Definition at line 116 of file kOmegaSSTSato.H.

Member Typedef Documentation

◆ alphaField

typedef BasicMomentumTransportModel::alphaField alphaField

Definition at line 157 of file kOmegaSSTSato.H.

◆ rhoField

typedef BasicMomentumTransportModel::rhoField rhoField

Definition at line 158 of file kOmegaSSTSato.H.

◆ transportModel

typedef BasicMomentumTransportModel::transportModel transportModel

Definition at line 159 of file kOmegaSSTSato.H.

Constructor & Destructor Documentation

◆ kOmegaSSTSato() [1/2]

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