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flat plate boundary layer problem --great influence of viscosity

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Old   August 10, 2010, 15:04
Default flat plate boundary layer problem --great influence of viscosity
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wayne.zhang
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Dear everyone:
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Old   August 10, 2010, 19:04
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Jiang Lijun
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It seems that there is a convergence problem with this case, k and epsilon were not convergent finally(because the RelTol set is 0.1?). And are you sure the BC. of U on top patch is proper set to fixedValue ? Anyway, it's a interesting but strange case, hope someone give me a bright hint.

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LJ
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Old   August 11, 2010, 07:25
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Old   August 11, 2010, 07:53
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Old   August 11, 2010, 13:46
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And also fine in CFX
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Old   August 11, 2010, 13:53
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Again the result of Fluent as before is not clear.

and it seems not the problem of turbulence model and wall function as i have turn off the turblence model by using laminar,This strange sensitive phenomenont will also happpened

thanks
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Old   August 12, 2010, 02:19
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what is your numerical boundary condition for your up patch in the poor case? It seems that it is a fixed value. Have you tried zerogradient or sym boundary condition for this patch?

regards, Junwei
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