![]() If you are using a meshing tool which is more structural mechanics oriented, this may be much more difficult. If you are using major CFD oriented commercial tools, adding a layer of thinner cells near a boundary is also always an option, though how to do it will be tool-specific. If you are using SALOME, the viscous layer option in the recently released 6.3 version should be a big help. I'll let turbulence specialists answer for 1), but I'm not sure scalable wall functions are enough (recent work on thermal wall functions wont' be available in a full version before the end of the year, but some patches might be still, I'm not sure here).Ģ) really depends on the meshing tool you are using. Thank you in advance for the help and please excuse my stupid questions. how can I have a mesh refined let say at the wall to obtain the needed y+ and bigger in the rest of the volume? (I am not sure if in this case I do not obtain the "mesh to refined at the wall" message. In the manual it is said that the scalable-wall function should solve the problem if you do not have thermal phenomena involved, not my case.Ģ. I even calculated the needed y(distance to the wall) for a y+ ~ 90 and I obtained something like 0.5mm which I think is to small to have a mesh for an object of some meters long. ![]() From what I have seen in the manual for high-Reynolds (I try to use the k-epsilon model) number I must have a y+ between 30 and 100, but for my case I obtain much higher values. Now I want to simulate a flow with thermal phenomena included and I am stuck a little bit on y+. I started using Code_Saturne almost half a year ago and I can say I can manage to make it work in some problems. ![]() ![]() This is my first posting on the forum and maybe the problems I encountered are somehow "stupid". ![]()
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