Free surface drag forces -- CFD Online Discussion Forums

March 7, 2002, 18:17	Free surface drag forces	#1
New1 Guest Posts: n/a	Hi, I would like to know if someone has already modified the drag forces in a free surface (VOF) simulation. I'm modeling a film of liquid flowing over an inclined surface and surrounded by air, and want to change the drag forces in both liquid-gas and liquid-solid interfaces. I think I need to go for a UDF but I wonder about the algorithm as in VOF I only have a single momentum transfer equation. Thnx in advance for any help. a New1

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