I am still running the case I was mentioning in the last 2 post on this mailing list, i.e. high reynolds (3e6) 2D incompressible flow over the ls417.
I have problems since the results, in particular the k coming out of the results, are quite different from the one computed using the RANS, almost two orders of magnitude higher.
I was thinking about the possible reasons for this and I was thinking that maybe using a ac-zeta lower than the standard 2.5 would give different results, maybe similar to the RANS. Could this be the case? What is the rationale behing the choice of zeta? I understood that lower zeta bring to “more incompressible” flows, but what are the downsides of chosing a low zeta? Also, what could be other trials to do in order to obtain k similar to the RANS?
I attach the ini file and the mesh.
Thank you in advance,
ls417.ini (1.55 KB)
ls417.msh (1.89 MB)