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August 18, 2008, 09:51 |
Hi!
I am modeling the wind
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#1 |
New Member
Majid Hojjat
Join Date: Mar 2009
Location: Munich, Germany
Posts: 3
Rep Power: 17 |
Hi!
I am modeling the wind effect on a cubic building. and first, to get the proper approaching flow (similar to experimental data) I am modeling an empty wind channel. prescribing the inlet velocity, I produce the Ux profile. but for turbulence intensity (or k) using the inlet is not hopeful and I guess I should use a rough wall function to get the desired profile. I tried using nutStandardRoughWallFunction but it was not really effective. even changing value of roughness length or... did not change anything. To have a rough wall, is it enough just to add nutStandardRoughWallFunction as the physical type in boundary file and to specify roughness length and other parameters in /0/k ? I am using OF 1.4.1 and I tried the mentioned problem in kEpsilon and kOmegaSSt as well as LES models. Thanks! |
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