buoyantKEpsilon in driftFluxFoam
Hi everyone,
Just curious about why the driftFluxFoam tutorial use buoyantKEpsilon as the turbulence model? driftFluxFoam Solver for 2 incompressible fluids using the mixture approach with the drift-flux approximation for relative motion of the phases. buoyantKEpsilon (Compressible RAS turbulence models) Additional buoyancy generation/dissipation term applied to the k and epsilon equations of the standard k-epsilon model. Thanks in advance. |
It looks like there is still a gravitational term used by the solver (check out createFields, pEqn, etc) suggesting that the liquid components' relative compressibility/density is not taken into account, but background compressibility/density are (and the difference in density between any gas and the two liquids). I am not terribly familiar with the multiphase family of solvers but if buoyancy is of concern having a RAS model tuned for buoyancy modeling makes sense.
Caelan |
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