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What may lead to a large value of k on the wall in a channel flow? |
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November 17, 2012, 08:42 |
What may lead to a large value of k on the wall in a channel flow?
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Member
sqing
Join Date: Sep 2012
Location: Dalian
Posts: 77
Rep Power: 14 |
Hi foamers,
I have simulated a 2d channel flow by the LaunderSharmaKE model. As it is one kind of low Re flow, so I choose the pisoFoam solver for it.Taking consideration of that there has tempreture exchange between the flow(300k) and the wall(310k), so I modify the pisoFoam solver and change it as my_pisoFoam with tempreture solverd in it. By using my_pisoFoam solver I got the solution of the channel flow, however, I don't know why the k value is so high on the wall, and I have given a zero value for U(velocity) on the wall. Does the temperature exchange lead to this or something else? Any reply will be appreciable. Thanks~ Sunxing |
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