Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
kOmegaSSTSato< BasicTurbulenceModel > Class Template Reference

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< BasicTurbulenceModel >:
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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 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 ("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 &propertiesName=turbulenceModel::propertiesName, const word &type=typeName)
 Construct from components. 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...
 
- 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 ()
 Destructor. More...
 
tmp< volScalarFieldDkEff (const volScalarField &F1) const
 Return the effective diffusivity for k. More...
 
tmp< volScalarFieldDomegaEff (const volScalarField &F1) const
 Return the effective diffusivity for omega. More...
 
virtual tmp< volScalarFieldk () const
 Return the turbulence kinetic energy. More...
 
virtual tmp< volScalarFieldepsilon () const
 Return the turbulence kinetic energy dissipation rate. More...
 
virtual tmp< volScalarFieldomega () 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 ()
 Destructor. More...
 
volScalarFieldevNut ()
 Return non-const access to the turbulence viscosity. More...
 
virtual tmp< volScalarFieldnut () const
 Return the turbulence viscosity. More...
 
virtual tmp< scalarFieldnut (const label patchi) const
 Return the turbulence viscosity on patch. More...
 
virtual tmp< volSymmTensorFieldR () const
 Return the Reynolds stress tensor. 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 ()
 Destructor. More...
 
virtual tmp< volSymmTensorFielddevRhoReff () const
 Return the effective stress tensor. More...
 
virtual tmp< fvVectorMatrixdivDevRhoReff (volVectorField &U) const
 Return the source term for the momentum equation. More...
 
virtual tmp< fvVectorMatrixdivDevRhoReff (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 ()
 Destructor. More...
 
const dimensionedScalarkMin () const
 Return the lower allowable limit for k (default: SMALL) More...
 
const dimensionedScalarepsilonMin () const
 Return the lower allowable limit for epsilon (default: SMALL) More...
 
const dimensionedScalaromegaMin () const
 Return the lower allowable limit for omega (default: SMALL) More...
 
dimensionedScalarkMin ()
 Allow kMin to be changed. More...
 
dimensionedScalarepsilonMin ()
 Allow epsilonMin to be changed. More...
 
dimensionedScalaromegaMin ()
 Allow omegaMin to be changed. More...
 
virtual const dictionarycoeffDict () const
 Const access to the coefficients dictionary. More...
 
virtual tmp< volScalarFieldnuEff () const
 Return the effective viscosity. More...
 
virtual tmp< scalarFieldnuEff (const label patchi) const
 Return the effective viscosity on patch. More...
 

Protected Member Functions

virtual void correctNut ()
 
- Protected Member Functions inherited from kOmegaSST< BasicTurbulenceModel >
tmp< volScalarFieldF1 (const volScalarField &CDkOmega) const
 
tmp< volScalarFieldF2 () const
 
tmp< volScalarFieldF3 () const
 
tmp< volScalarFieldF23 () const
 
tmp< volScalarFieldblend (const volScalarField &F1, const dimensionedScalar &psi1, const dimensionedScalar &psi2) const
 
tmp< volScalarFieldalphaK (const volScalarField &F1) const
 
tmp< volScalarFieldalphaOmega (const volScalarField &F1) const
 
tmp< volScalarFieldbeta (const volScalarField &F1) const
 
tmp< volScalarFieldgamma (const volScalarField &F1) const
 
void correctNut (const volScalarField &S2)
 
virtual tmp< fvScalarMatrixkSource () const
 
virtual tmp< fvScalarMatrixomegaSource () const
 
virtual tmp< fvScalarMatrixQsas (const volScalarField &S2, const volScalarField &gamma, const volScalarField &beta) const
 
- Protected Member Functions inherited from RASModel< BasicTurbulenceModel >
virtual void printCoeffs (const word &type)
 Print model coefficients. More...
 

Protected Attributes

dimensionedScalar Cmub_
 
- Protected Attributes inherited from kOmegaSST< 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_
 
const volScalarFieldy_
 Wall distance. More...
 
volScalarField k_
 
volScalarField omega_
 
- 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< RASModelNew (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::kOmegaSSTSato< BasicTurbulenceModel >

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 coefficuients 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 is y+ becomes sufficiently small blending u_tau in this manner clearly becomes 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
Source files

Definition at line 120 of file kOmegaSSTSato.H.

Member Typedef Documentation

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 161 of file kOmegaSSTSato.H.

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 162 of file kOmegaSSTSato.H.

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 163 of file kOmegaSSTSato.H.

Constructor & Destructor Documentation

kOmegaSSTSato ( 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 42 of file kOmegaSSTSato.C.

virtual ~kOmegaSSTSato ( )
inlinevirtual

Destructor.

Definition at line 187 of file kOmegaSSTSato.H.

References kOmegaSSTSato< BasicTurbulenceModel >::correct(), and kOmegaSSTSato< BasicTurbulenceModel >::read().

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Member Function Documentation

void correctNut ( )
protectedvirtual

Reimplemented from kOmegaSST< BasicTurbulenceModel >.

Definition at line 136 of file kOmegaSSTSato.C.

References Foam::exp(), Foam::fvc::grad(), Foam::mag(), Foam::max(), nu, Foam::pow(), Foam::sqr(), Foam::sqrt(), Foam::symm(), and yPlus.

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TypeName ( "kOmegaSSTSato< BasicTurbulenceModel >"  )

Runtime type information.

bool read ( )
virtual

Read model coefficients if they have changed.

Reimplemented from kOmegaSST< BasicTurbulenceModel >.

Definition at line 89 of file kOmegaSSTSato.C.

References IOobject::db(), fluid, IOobject::groupName(), objectRegistry::lookupObject(), twoPhaseSystem::otherPhase(), and turbulenceModel::propertiesName.

Referenced by kOmegaSSTSato< BasicTurbulenceModel >::~kOmegaSSTSato().

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void correct ( )
virtual

Solve the turbulence equations and correct the turbulence viscosity.

Reimplemented from kOmegaSST< BasicTurbulenceModel >.

Definition at line 162 of file kOmegaSSTSato.C.

References kOmegaSST< BasicTurbulenceModel >::correct().

Referenced by kOmegaSSTSato< BasicTurbulenceModel >::~kOmegaSSTSato().

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Member Data Documentation

dimensionedScalar Cmub_
protected

Definition at line 152 of file kOmegaSSTSato.H.


The documentation for this class was generated from the following files: