[suihenry]

Hi,all
Now, i will simulate a motor controller, but i found several software can do the simulation, such as CFX, Fluent, STAR-CD, FloEFD, ICEPAK, Flotherm, CFdesign, and so on.
CFX and fluent are common used CFD analysis software, so i don't want to use them for they are too powerful and expensive with long-time study.
Star-CD is mostly used in engine design.
Flotherm is created for electric product like PCB and so on. In this controller, i need to simulate the Air flow situation with thermal and fluid flow.
But how can i identify the difference between ICEPAK, FloEFD, CFdesign?
The software should be as cheap as possible with fully satisfied functions.
Thanks.