Provided for use with mixture turbulence models in interFoam and
compressibleInterFoam.
Class
Foam::fv::VoFTurbulenceDamping
Description
Free-surface turbulence damping function
Adds an extra source term to the mixture or phase epsilon or omega
equation to reduce turbulence generated near a free-surface. The
implementation is based on
Reference:
\verbatim
Frederix, E. M. A., Mathur, A., Dovizio, D., Geurts, B. J.,
& Komen, E. M. J. (2018).
Reynolds-averaged modeling of turbulence damping
near a large-scale interface in two-phase flow.
Nuclear engineering and design, 333, 122-130.
\endverbatim
but with an improved formulation for the coefficient \c A appropriate for
unstructured meshes including those with split-cell refinement patterns.
However the dimensioned length-scale coefficient \c delta remains and must
be set appropriatly for the case by performing test runs and comparing with
known results. Clearly this model is far from general and more research is
needed in order that \c delta can be obtained directly from the interface
flow and turbulence conditions.
Usage
Example usage:
\verbatim
VoFTurbulenceDamping
{
type VoFTurbulenceDamping;
libs ("libVoFTurbulenceDamping.so");
// Interface turbulence damping length scale
// This is a required input as described in section 3.3 of the paper
delta 1e-4;
// phase water; // Optional phase name
}
\endverbatim
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