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kOmegaSSTSAS.md

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kOmegaSSTSAS

Class

Foam::RASModels::kOmegaSSTSAS

Group

grpLESTurbulence

Description

Scale-adaptive URAS model based on the k-omega-SST RAS model.

References:

        Egorov, Y., & Menter F.R. (2008).
        Development and Application of SST-SAS Model in the DESIDER Project.
        Advances in Hybrid RANS-LES Modelling,
        Notes on Num. Fluid Mech. And Multidisciplinary Design,
        Volume 97, 261-270.

The model coefficients are

        kOmegaSSTSASCoeffs
        {
            // Default SST coefficients
            alphaK1     0.85;
            alphaK2     1.0;
            alphaOmega1 0.5;
            alphaOmega2 0.856;
            beta1       0.075;
            beta2       0.0828;
            betaStar    0.09;
            gamma1      5/9;
            gamma2      0.44;
            a1          0.31;
            b1          1.0;
            c1          10.0;
            F3          no;

            // Default SAS coefficients
            Cs          0.11;
            kappa       0.41;
            zeta2       3.51;
            sigmaPhi    2.0/3.0;
            C           2;

            // Delta must be specified for SAS e.g.
            delta cubeRootVol;

            cubeRootVolCoeffs
            {}
        }

SourceFiles

kOmegaSSTSAS.C