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RSM mesh requirement

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Old   March 16, 2007, 08:20
Default RSM mesh requirement
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Felix
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Hello,

I would like somebody to confirm I understood well what I've read so far.

As I understand it, the SSG Reynolds stress model uses wall functions to solve the boundary layer. The Y+ values can there for be quite large, say 30-100. On the otherside, the BSL Reynolds stress solves down to the wall and so the Y+ should be kept below 2, as far as it is possible. The latter model should therefore be more accurate on the amount of separation predicted.

Is there anything else I should know concerning mesh requirement for the RSM models ? I usually use 2-eq models.

Thanks a lot,

Felix
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