[ebacherville]

Originally Posted by ttoyoda

For computational fluid dynamics modeling :
http://www.fluent.com/solutions/automotive/aero.htm
Big money unless you get it free at school. Not the eaisest to learn. Pitfalls for the unskeptical, i.e. you make an error in setting up the model or test conditions (true for any modeling software) you might get wrong answers and not realize it. I used to use it years ago, to model air flow thru heat sinks and air distribution ducts, and it was easy to spend weeks making models, running the simulation, interpreting the results. In the end, the PCB layout guys put components where THEY wanted, and we would make ducts and heatsinks so the product would not catch fire.
If you have no training in modeling with it, it will take you less time and you will have more fun just making the real thing. If you have the software free and someone can show you how to use it, then make models.

Yeah as I suspected.. ill just do what i can learning from others and companies that have spent millions in the area of study.. far simpler.. and probably more reliable..