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Commit 5276cc1d authored by Henry's avatar Henry
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PrandtlDelta: Added description

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1673
parent 4916a13d
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...@@ -25,7 +25,31 @@ Class ...@@ -25,7 +25,31 @@ Class
Foam::PrandtlDelta Foam::PrandtlDelta
Description Description
Simple cube-root of cell volume delta used in LES models. Apply Prandtl mixing-length based damping function to the specified
geometric delta to improve near-wall behavior or LES models.
\verbatim
delta = min(geometricDelta, (kappa/Cdelta)*y)
\endverbatim
Example specification in the turbulenceProperties dictionary:
\verbatim
delta Prandtl;
PrandtlCoeffs
{
delta cubeRootVol;
cubeRootVolCoeffs
{
deltaCoeff 1;
}
// Default coefficients
kappa 0.41;
Cdelta 0.158;
}
\endverbatim
SourceFiles SourceFiles
PrandtlDelta.C PrandtlDelta.C
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