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Search: Posts Made By: roberthino
Forum: OpenFOAM Running, Solving & CFD September 6, 2007, 15:46
Replies: 9
Views: 1,654
Posted By roberthino
sure that makes sense....but f

sure that makes sense....but for example i found another standard wall function expression......i thought that this other one could work better. also y+ has to be over 40 in that one. but well maybe...
Forum: OpenFOAM Running, Solving & CFD September 6, 2007, 15:25
Replies: 9
Views: 1,654
Posted By roberthino
well here is the thing...y+ ha

well here is the thing...y+ has to be over 100 for openfoam in combination with wall functions. if you take a channel flow with water (v = e-6, Re = 10000) it is nearly impossible to get such an...
Forum: OpenFOAM Running, Solving & CFD September 6, 2007, 12:58
Replies: 9
Views: 1,654
Posted By roberthino
yeah that part i also found...

yeah that part i also found....but how can i change it, so that the values for y+ which are calculated are a lot higher with the same grid? i am not that much into c++, i just tried to multiply the...
Forum: OpenFOAM Running, Solving & CFD September 6, 2007, 12:39
Replies: 9
Views: 1,654
Posted By roberthino
and something else i forgott.

and something else i forgott. can plz someone tell where i can find the iplementation of y+ in openfoam. i want to change it somehow so that it is easier to get a y+ over 100 for a channel flow.
Forum: OpenFOAM Running, Solving & CFD September 6, 2007, 11:57
Replies: 9
Views: 1,654
Posted By roberthino
hi people, well again me. i st

hi people, well again me. i still have the same problem, which is like this. if i do a turbulent channel flow simulation i get good results with k-epsilon and reynolds stress models. if i do the same...
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