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open channel flow BC pressure outlet

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Old   January 17, 2015, 08:21
Default open channel flow BC pressure outlet
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Hi everybody.

I am simulating a open channel flow with a water wheel. I have 3 outlet:
1) the first is where the water flow exit, with above the air
2) an other outlet where exit only air, since it is above the previous outlet
3) the third is lateral, above the wall which contains laterally the channel

In the boundary conditions I have to specify the bottom level (I chose the metod "from neighbour cells"), but since each outlet has a different bottom level, the only way to specify different bottom level is to define for each outlet a different outlet ID. But in this way Fluent doesn't start. Why? How can I do?

Thank you
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