I think that minger's comment was done with sarcasm.
Sure, almost anyone can put numbers into a CFD program and they will surely get a result. But if you don't understand what the program does, you will probably end up with meaningless results.
Garbage in --> Garbage out
I found this wiki link about guidelines for turbomachinery CFD
that might enlighten you about what CFD can do and cannot do (yet) and how difficult it can be to choose an appropriate CFD simulation to solve a problem. And that's only for turbomachinery.