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How to define oil as disperse phase and water as continuous phase on same inlet?

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Old   February 2, 2022, 17:46
Post How to define oil as disperse phase and water as continuous phase on same inlet?
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Muhammad Atif
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I am very new to multiphase analysis. I am running an analysis of a control valve with oil in water as fluid. I understand how to define boundary conditions for multiphase inlet but when I run analysis both phases are uniformly mixed at inlet, however, in reality there are oil droplets in the upstream pipes that pass through the valve body and break down into smaller droplets.

Is there a way to define oil droplets coming from inlet? currently, I am just defining velocity and volume fraction and you can see the picture attached that the flow is uniform near the inlet side and later oil starts accumulating on the top side.

Any suggestion would be highly appreciated.
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inlet bc, multiphase boundary, oil and gas

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