take off UDF
 

Hi all

I'm trying to create an UDF to simulate a take off of an aircraft, so I need a velocity profile wich changes with time [Vx(t),Vy(t),Vz(t)]

Can anyone help me???

Thanks!

You can create UDF with DEFINE_PROFILE macro. More help can be found here http://jullio.pe.kr/fluent6.1/help/html/udf/node71.htm .