UDF for subtract velocity component -- CFD Online Discussion Forums

September 14, 2010, 03:44	UDF for subtract velocity component	#1
BuilttoSpill New Member Join Date: Aug 2009 Posts: 9 Rep Power: 17	Hi everybody, I'm a beginner in writing UDF.... My basic problem is that i'm making an object moving.With the object is also moving the boundary layer,so i don't have to remesh that zone..now,in the boundary layer there is a component of that velocity(that i know because i know the velocity the object have at every time step) that i wont to subtract,so the simulation is phisically correct. What kind of macros i have to use?the define_adjust or a define_profile? If anyone have some idea about this I would be very grateful!!! Paul

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