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ENH: DEShybrid - added robustness for case that nuEff goes negative (typically from negative denisty in compressible cals). See #1224

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This commit is contained in:
Andrew Heather
2019-03-01 11:30:20 +00:00
parent f330921c74
commit d50c5ce86f
1 changed files with 14 additions and 1 deletions
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15
src/TurbulenceModels/schemes/DEShybrid/DEShybrid.H
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@ -197,13 +197,26 @@ class DEShybrid
CH3_*Omega*max(S, Omega) CH3_*Omega*max(S, Omega)
/max(0.5*(sqr(S) + sqr(Omega)), sqr(OmegaLim_/tau0_)) /max(0.5*(sqr(S) + sqr(Omega)), sqr(OmegaLim_/tau0_))
); );
const volScalarField K const volScalarField K
( (
max(Foam::sqrt(0.5*(sqr(S) + sqr(Omega))), 0.1/tau0_) max(Foam::sqrt(0.5*(sqr(S) + sqr(Omega))), 0.1/tau0_)
); );
const volScalarField lTurb(Foam::sqrt(nuEff/(pow(0.09, 1.5)*K))); const volScalarField lTurb
(
Foam::sqrt
(
max
(
nuEff/(pow(0.09, 1.5)*K),
dimensionedScalar("l0", sqr(dimLength), 0)
)
)
);
const volScalarField g(tanh(pow4(B))); const volScalarField g(tanh(pow4(B)));
const volScalarField A const volScalarField A
( (
CH2_*max CH2_*max