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Old   December 10, 2009, 08:51
Question Two phase momentum
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Can anybody please clarify what is [vi] (velocity transported across interface) in the momentum conservation equation [see picture below]?

I have two phase stratified flow with almost stagnant water (v=0.03 m/s) and steam enters at 10 m/s. Steam is condensing at the interface. Ag and Al are constant along the channel.

What should I enter as [vi] for gas phase and what for liquid phase?

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conservation, momentum, two fluid model, two phase

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