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kOmega Class Reference

Standard high Reynolds-number k-omega turbulence model for incompressible flows. More...

#include <incompressibleRASModels/kOmega.H>


Detailed Description

Standard high Reynolds-number k-omega turbulence model for incompressible flows.

References:

"Turbulence Modeling for CFD"
D. C. Wilcox,
DCW Industries, Inc., La Canada,
California, 1988.

See also:
http://www.cfd-online.com/Wiki/Wilcox's_k-omega_model

The default model coefficients correspond to the following:

kOmegaCoeffs
{
Cmu 0.09;  // Equivalent to betaStar
alpha   0.52;
beta0.072;
alphak  0.5;
alphaOmega  0.5;
}
Source files

Definition at line 77 of file kOmega.H.

Inheritance diagram for kOmega:
Collaboration diagram for kOmega:

List of all members.

Public Member Functions

 TypeName ("kOmega")
 Runtime type information.
 kOmega (const volVectorField &U, const surfaceScalarField &phi, transportModel &transport)
 Construct from components.
virtual  ~kOmega ()
virtual tmp< volScalarField >  nut () const
 Return the turbulence viscosity.
tmp< volScalarField >  DkEff () const
 Return the effective diffusivity for k.
tmp< volScalarField >  DomegaEff () const
 Return the effective diffusivity for omega.
virtual tmp< volScalarField >  k () const
 Return the turbulence kinetic energy.
virtual tmp< volScalarField >  omega () const
 Return the turbulence specific dissipation rate.
virtual tmp< volScalarField >  epsilon () const
 Return the turbulence kinetic energy dissipation rate.
virtual tmp< volSymmTensorField >  R () const
 Return the Reynolds stress tensor.
virtual tmp< volSymmTensorField >  devReff () const
 Return the effective stress tensor including the laminar stress.
virtual tmp< fvVectorMatrix >  divDevReff (volVectorField &U) const
 Return the source term for the momentum equation.
virtual void  correct ()
 Solve the turbulence equations and correct the turbulence viscosity.
virtual bool  read ()
 Read RASProperties dictionary.

Constructor & Destructor Documentation

kOmega ( const volVectorField &   U,
const surfaceScalarField &   phi,
transportModel &   transport  
)

Construct from components.

Definition at line 48 of file kOmega.C.

virtual ~kOmega (  ) [inline, virtual]

Definition at line 116 of file kOmega.H.


Member Function Documentation

TypeName ( "kOmega"    )

Runtime type information.

virtual tmp<volScalarField> nut (  ) const [inline, virtual]

Return the turbulence viscosity.

Implements incompressible::RASModel.

Definition at line 123 of file kOmega.H.

tmp<volScalarField> DkEff (  ) const [inline]

Return the effective diffusivity for k.

Definition at line 129 of file kOmega.H.

References incompressible::turbulenceModel::nu().

Referenced by kOmega::correct().

tmp<volScalarField> DomegaEff (  ) const [inline]

Return the effective diffusivity for omega.

Definition at line 138 of file kOmega.H.

References incompressible::turbulenceModel::nu().

Referenced by kOmega::correct().

virtual tmp<volScalarField> k (  ) const [inline, virtual]

Return the turbulence kinetic energy.

Implements incompressible::RASModel.

Definition at line 147 of file kOmega.H.

virtual tmp<volScalarField> omega (  ) const [inline, virtual]

Return the turbulence specific dissipation rate.

Definition at line 153 of file kOmega.H.

virtual tmp<volScalarField> epsilon (  ) const [inline, virtual]

Return the turbulence kinetic energy dissipation rate.

Implements incompressible::RASModel.

Definition at line 159 of file kOmega.H.

References GeometricField< Type, PatchField, GeoMesh >::boundaryField(), incompressible::turbulenceModel::mesh_, fvMesh::time(), and Time::timeName().

tmp< fvVectorMatrix > divDevReff ( volVectorField &   U  ) const [virtual]

Return the source term for the momentum equation.

Implements incompressible::RASModel.

Definition at line 189 of file kOmega.C.

References Foam::dev(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), incompressible::RASModel::nuEff(), and Foam::T().

bool read (  ) [virtual]

Read RASProperties dictionary.

Implements incompressible::RASModel.

Definition at line 199 of file kOmega.C.

References incompressible::RASModel::coeffDict(), and dimensioned< Type >::readIfPresent().


The documentation for this class was generated from the following files:
  • src/turbulenceModels/incompressible/RAS/kOmega/kOmega.H
  • src/turbulenceModels/incompressible/RAS/kOmega/kOmega.C