Hi friends, I am a Rookie in using Fluent,When I model a box volume,and one plate in it,Box Top Velocity inlet and right Pressure out.I try let plate move in one direction(ex:Vx=0.1m/s,Vy=Vz=0),finally plate move through out the box at Pressure out.

That mean i want let plate move,must write UDF,C code??No a funtion set that plate zone(Solid Wall) move?Or how about VOF??

Friend,please help me solve the problem,thanks much.

**I have Post this model photo,green mark is plate. http://ounon.myweb.hinet.net/box.gif

Best Regards, Jimmy.

Hi jimmy yes you must write udf cod is not very difficult study udf help which branch do you study? where? do you want,I write it for you? mail me bye

Hi nasser,Thank U so much. ^^"I have follow your advise and reading Fluent's UDF Manual now...that's right i must try to write C code after.

Thanks for your reply.

Best Regards, Jimmy.

(MSN ounon@hotmail.com)