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Old   April 4, 2019, 03:12
Default Open Channel Flow
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I am modeling a two phase flow, air and water, with normal depth 0.1 m. I put velocity inlet 0.485 m/s for water and 0.0485 m/s for air. In the outlet o used pressure outlet.
The results of the velocity I get are down below.
The free surface keeps falling. The velocity of air greatly affects the profile of x velocity.. Any idea why? And how can I fix it?

I used k - ε model.

Thank you.
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Old   July 13, 2021, 05:04
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I have the same problem, can you send me your file perhaps?
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free surface, open channel flow, velocity profile

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