7.2 Turbulence models

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LESmodel Name of LES model delta Name of delta model <LESmodel>Coeffs Dictionary of coefficients for the respective LESmodel <delta>Coeffs Dictionary of coefficients for each delta model kappa von Kármán’s constant wallFunctionCoeffs Dictionary of wall function coefficients Table 7.5: Keyword entries in the LESProperties dictionary.

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The incompressible and compressible RAS turbulence models, isochoric and anisochoric LES models and delta models are all named and described in 3.9. The user may consult turbulenceProperties dictionary from a relevant example case to get a full list of coefficients required for each model and their default values. The required coefficients may differ depending on whether the RAS models are incompressible or compressible and whether the LES models are isochoric or anisochoric. For reference, these different categories of RAS and LES models are represented in the RASProperties and LESProperties dictionaries, respectively, of the following example cases in the $FOAM_TUTORIALS directory:

turbFoam/cavity

Incompressible RAS turbulence models;

sonicTurbFoam/prism

Compressible RAS turbulence models;

oodles/pitzDaily

Isochoric LES turbulence models;

Xoodles/pitzDaily

Anisochoric LES turbulence models;