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Would be cool if there was a wind tunnel simulator we could run our setups through before deciding on a particular configuration.



Yes something like (near the bottom of): http://www.bikehps.com/mra/variotouringscreens.html

This looks like finite volume computer fluid dynamics. It used to take a main frame computer to do these runs but now they could probably be done on a modern pc. I bet there are lots of people running these programs at work to simulate proposed automotive, architectural wind effects and other new designs.