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SpalartAllmaras Class Reference

Spalart-Allmaras one-eqn mixing-length model for compressible external flows. More...

#include <compressibleRASModels/SpalartAllmaras.H>


Detailed Description

Spalart-Allmaras one-eqn mixing-length model for compressible external flows.

Reference:

"A One-Equation Turbulence Model for Aerodynamic Flows"
P.R. Spalart,
S.R. Allmaras,
La Recherche Aerospatiale, No. 1, 1994, pp. 5--21.

Extended according to:

"An Unstructured Grid Generation and Adaptive Solution Technique
for High Reynolds Number Compressible Flows"
G.A. Ashford,
Ph.D. thesis, University of Michigan, 1996.

The default model coefficients correspond to the following:

SpalartAllmarasCoeffs
{
Cb1 0.1355;
Cb2 0.622;
Cw2 0.3;
Cw3 2.0;
Cv1 7.1;
Cv2 5.0;
sigmaNut0.66666;
Prt 1.0;// only for compressible
kappa   0.41;
}
Source files

Definition at line 87 of file SpalartAllmaras.H.

Inheritance diagram for SpalartAllmaras:
Collaboration diagram for SpalartAllmaras:

List of all members.

Public Member Functions

 TypeName ("SpalartAllmaras")
 Runtime type information.
 SpalartAllmaras (const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi, const basicThermo &thermophysicalModel)
 Construct from components.
virtual  ~SpalartAllmaras ()
 Destructor.
tmp< volScalarField >  DnuTildaEff () const
 Return the effective diffusivity for nuTilda.
virtual tmp< volScalarField >  mut () const
 Return the turbulence viscosity.
virtual tmp< volScalarField >  alphaEff () const
 Return the effective turbulent thermal diffusivity.
virtual tmp< volScalarField >  k () const
 Return the turbulence kinetic energy.
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 >  devRhoReff () const
 Return the effective stress tensor including the laminar stress.
virtual tmp< fvVectorMatrix >  divDevRhoReff (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

SpalartAllmaras ( const volScalarField &   rho,
const volVectorField &   U,
const surfaceScalarField &   phi,
const basicThermo &   thermophysicalModel  
)

Construct from components.

Definition at line 108 of file SpalartAllmaras.C.

virtual ~SpalartAllmaras (  ) [inline, virtual]

Destructor.

Definition at line 155 of file SpalartAllmaras.H.


Member Function Documentation

TypeName ( "SpalartAllmaras"    )

Runtime type information.

tmp<volScalarField> DnuTildaEff (  ) const [inline]

Return the effective diffusivity for nuTilda.

Definition at line 162 of file SpalartAllmaras.H.

References SpalartAllmaras::DnuTildaEff(), mu, and turbulenceModel::rho_.

Referenced by SpalartAllmaras::DnuTildaEff().

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

Return the turbulence viscosity.

Implements RASModel.

Definition at line 175 of file SpalartAllmaras.H.

References SpalartAllmaras::mut().

Referenced by SpalartAllmaras::mut().

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

Return the effective turbulent thermal diffusivity.

Implements RASModel.

Definition at line 181 of file SpalartAllmaras.H.

References turbulenceModel::alpha(), and SpalartAllmaras::alphaEff().

Referenced by SpalartAllmaras::alphaEff().

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

Return the turbulence kinetic energy.

Implements RASModel.

Definition at line 190 of file SpalartAllmaras.H.

References turbulenceModel::mesh_, turbulenceModel::runTime_, and Time::timeName().

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

Return the turbulence kinetic energy dissipation rate.

Implements RASModel.

Definition at line 209 of file SpalartAllmaras.H.

References SpalartAllmaras::epsilon(), turbulenceModel::mesh_, turbulenceModel::runTime_, and Time::timeName().

Referenced by SpalartAllmaras::epsilon().

tmp< volSymmTensorField > R (  ) const [virtual]

Return the Reynolds stress tensor.

Implements RASModel.

Definition at line 251 of file SpalartAllmaras.C.

References Foam::dev(), Foam::fvc::grad(), Foam::I, k(), IOobject::NO_READ, IOobject::NO_WRITE, and Foam::twoSymm().

tmp< volSymmTensorField > devRhoReff (  ) const [virtual]

Return the effective stress tensor including the laminar stress.

Implements RASModel.

Definition at line 271 of file SpalartAllmaras.C.

References Foam::dev(), Foam::fvc::grad(), muEff(), IOobject::NO_READ, IOobject::NO_WRITE, and Foam::twoSymm().

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

Return the source term for the momentum equation.

Implements RASModel.

Definition at line 291 of file SpalartAllmaras.C.

References Foam::dev2(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), muEff(), and Foam::T().

void correct (  ) [virtual]
bool read (  ) [virtual]

Read RASProperties dictionary.

Implements RASModel.

Definition at line 303 of file SpalartAllmaras.C.

References dimensioned< Type >::readIfPresent(), and Foam::sqr().


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