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I recently got my BSME, and I paid attention during Heat Transfer 301 and 302, so I understand the principles of CFD.
I tried to pick up ANSYS CFX to compare a boat-tailed Insight against a stock Insight and locate aerodynamic deficiencies before building the first prototype. However, I couldn't generate a valid mesh for any models I drew in Pro/E. I even tried to make a mesh from a cube I drew in Pro/E, and I still got dozens of unconnected verticies and other fatal mesher failures.
I've resolved to have a little faith in the science behind the design, just build it, and see what happens.
If you have any more success with CFX than I did, I'd like to read about it.
Attached is a crude model of an Insight, created from a projection of front, side, and top views, with a detachable tail extension based on Aerohead's template.
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