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[GAMBIT] evaluting meshing and velocity profile near the wall |
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#1 |
Senior Member
Fatema Zandi Goharrizi
Join Date: Mar 2009
Posts: 158
Rep Power: 17 ![]() |
Hi
I'm doing a free surface flow CFD modeling project that the velocity and pressure near the bottom (wall boundary) are important parameters. for evaluating the pressure result I have data and after refining mesh I saw that the pressur was not sensitive to it and I reached to a good answer. but for velocity I do not have any data and just want to reach an answer that not depedent on mesh size. I use k-epsilon standard in CFX code so my limitation for y+ is 20 and 100 (CFX help)
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#2 |
Member
Join Date: Oct 2009
Location: Italy
Posts: 88
Rep Power: 16 ![]() |
hi,
i think that you try to create a boundary layer near the surface. So the mesh near the surface is very small. in gambit there is a specific buttom for this. the parameters that you controll is:
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#3 | |
Senior Member
Fatema Zandi Goharrizi
Join Date: Mar 2009
Posts: 158
Rep Power: 17 ![]() |
Quote:
thank you so much |
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#4 |
Senior Member
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if you'd like to consider the secondary flow K-e is not a good model.
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Tags |
k-epsilon, mesh evaluting, yplus |
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