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Commit 4506ff0d authored by henry's avatar henry
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Added a limiter as given in the references in kOmegaSSTSAS.H.

parent ee033487
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......@@ -98,16 +98,20 @@ tmp<volScalarField> kOmegaSSTSAS::Lvk2
const volScalarField& S2
) const
{
return kappa_*sqrt(S2)
/(
mag(fvc::laplacian(U()))
+ dimensionedScalar
(
"ROOTVSMALL",
dimensionSet(0, -1 , -1, 0, 0, 0, 0),
ROOTVSMALL
)
);
return max
(
kappa_*sqrt(S2)
/(
mag(fvc::laplacian(U()))
+ dimensionedScalar
(
"ROOTVSMALL",
dimensionSet(0, -1 , -1, 0, 0, 0, 0),
ROOTVSMALL
)
),
Cs_*delta()
);
}
......@@ -222,6 +226,15 @@ kOmegaSSTSAS::kOmegaSSTSAS
10.0
)
),
Cs_
(
dimensioned<scalar>::lookupOrAddToDict
(
"Cs",
coeffDict_,
0.262
)
),
alphaPhi_
(
dimensioned<scalar>::lookupOrAddToDict
......@@ -441,6 +454,7 @@ bool kOmegaSSTSAS::read()
betaStar_.readIfPresent(coeffDict());
a1_.readIfPresent(coeffDict());
c1_.readIfPresent(coeffDict());
Cs_.readIfPresent(coeffDict());
alphaPhi_.readIfPresent(coeffDict());
zetaTilda2_.readIfPresent(coeffDict());
FSAS_.readIfPresent(coeffDict());
......
......@@ -28,8 +28,13 @@ Class
Description
kOmegaSSTSAS LES turbulence model for incompressible flows
Note: does not have an explicit dependency on spatial discretisation
i.e. LESdelta not used.
Reference:
DESider A European Effort on Hybrid RANS-LES Modelling:
Results of the European-Union Funded Project, 2004 - 2007
(Notes on Numerical Fluid Mechanics and Multidisciplinary Design).
Chapter 8 Formulation of the Scale-Adaptive Simulation (SAS) Model during
the DESIDER Project.
F. R. Menter and Y. Egorov.
SourceFiles
kOmegaSSTSAS.C
......@@ -92,6 +97,7 @@ protected:
dimensionedScalar a1_;
dimensionedScalar c1_;
dimensionedScalar Cs_;
dimensionedScalar alphaPhi_;
dimensionedScalar zetaTilda2_;
......
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