realization

O.K.
so i decide to use CFX +ansys i need to master it in 3 days.

http://www.cfd-online.com/Forums/cfx/23526-fsi-fluent-ansys-fluent-cfx.html
else i will be fired.

so fluent+ansys cannot do two way,
so i use cfx +ansys according to link

sad to say it is only has it in ansys 13
http://www.cfd-online.com/Forums/ansys/90844-2way-fsi-ansys-workbench.html

http://www.xansys.org/forum/viewtopic.php?p=69818&sid=864c3cb62e79ad3320ed002da8704b3d
if he can complete everything in one week, me too.gambateh.