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Problem with Pressure Outlet and Openchannelflow

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Old   August 31, 2015, 05:25
Default Problem with Pressure Outlet and Openchannelflow
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Sebastian Bock
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Hello CFD Online,

i am simulating a simple openchannel problem, but the pressure outlet i use acts like an inlet and i am not able to find the cause. I uploaded the cas file, in the hope that somebody can help me.
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File Type: zip fluent_vof_test_22.zip (52.8 KB, 9 views)
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Old   September 29, 2015, 08:56
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I have several notes to your case:
- too coarse mesh. I mean, 400 cells? You should make much finer mesh to get some reasonable solution.
- when using k-epsilon model, the good "fisrt choice" can be Non-equilibrium wall function
-as a surface tension you have used value 72 N/m. The actual value is 72 mN/m - 1000x smaller.

What problem are you trying to simulate?
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