Hello,
There is an opportunity to solve CFD problems with Creo.
Mentor Graphics is having tie-up with PTC.
Attached the demo guide (Demo version can be downloaded from M-G website).
For additional info:
http://www.mentor.com/products/mechanical/products/floefd/
http://www.youtube.com/watch?v=f9JhPUzzhZ0
Hope it may help you.
Shiva