kOmegaSST_LowRe in OpenFOAM-1.5-dev
Hi, foamers.
I've always been using k-omega SST turbulent model with wall functions so far (with appropriate y+). Now I'm interested in a low Re model, I want to check how much it can affect my results. Maybe the difference is not so important for my case and my applications, in view of hardware and time consumption. If I'm correct, I can still use kOmegaSST OpenFOAM turbulent model and an appropriate finer mesh with a resulting y+≈1. But I also saw that OpenFOAM-1.5-dev implemented a kOmegaSST_LowRe. What's the difference with an usual kOmegaSST model with a y+≈1 mesh? Are there different settings for k and omega close to wall surfaces (I always use zeroGradient)? I looked for that in the forum but I couldn't find anything useful. |
I tried to run a simulation and I simply substitute kOmegaSST with kOmegaSST_LowRe in RASProperties, but I obtain an error:
Code:
Selecting incompressible transport model Newtonian |
OK, I solved. I included in RASProperties the following coefficients (suggested in kOmegaSST_LowRe.H):
Code:
kOmegaSST_LowReCoeffs |
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