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Phase velocity in VOF model UDF

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Old   June 15, 2009, 21:25
Default Phase velocity in VOF model UDF
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Hi everybody,

Iam working on drop impact on a solid surface. What I want is to track the contact line velocity from the 2nd phase only during the spreading on the surface.
But I don't understand which variables I need to use to write my UDF.

I know that I have an access to the velocity magnitude for the mixture model but I only need the 2nd phase. Maybe I can substract the first phase velocity from the mixture phase ?

If someone can help me I would really appreciate.
Thanks for help,

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