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Old   November 18, 2003, 12:24
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I try to simulate a water drop (d=1mm, always spherical!!) falling in air, and obtain the velocity fields in the drop and in the surrounding the air. So far, I have tried the VOF, Mixture and the Eulerian Models, but not able to maintain the sperical shape of the interphase (drop spreads over the domain), and the expected inner and outer velocity fields (seems that there is no coupling between the two phases). I am not sure that Fluent includes necessary boundary conditions at the interphase, so that I will not need to define them of my own by UDF.

Does any one know how can I work this out?

Thanks in advance
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