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July 11, 2016, 16:31 |
v2f turbulent model
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#1 |
New Member
hamide hayati
Join Date: Oct 2015
Posts: 28
Rep Power: 10 |
hi all
i want to simulate turbulent flow in a 2D channel (2*40cm) by v2f model. i set it as follow: -i try to use fine mesh near the wall, (y+<=1) -B.C : velocity inlet, v=5 m/s , and define functions for v,k,epsilon and v2.(to be fully developed from beginning of channel) outFlow for end of the channel nosleep fo walls. -second order upwind to solve equations. but unfortunately i can't valid my results!!!!!! for example i can't find u+ vs y+ graph correctly!!! and also v'+ vs y+ and k+ vs y+ near the wall!!!!(1<y+<100) i don't know what the problem is!!!! is there any one help me to handle this problem. |
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