On the topic of wheel farings, I found this image to be interesting.
2008 Barcelona Testing - April - Forum - F1technical.net
Caption from next page in link:
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It's a very common method of showing airflow
its basically kerosene with some dye mixed in the kerosene evaporates away leaving the dye behind showing the airflow path
at the speeds f1 cars travel the air dosent really compress anyway
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EDIT-1: Hummgh.........strange...
http://fakeferrarinews.wordpress.com...nd-other-news/
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It is still a matter of debate whether these strange wheel attachments are indeed an aero device, a measuring device, a satelite system, or a tv signal booster, perhaps only time will tell. Personally we were hoping for some spikes out the side to shred the oppositions tyres, but you know we can’t have it all and we are prone to getting carried away with things on the odd occasion.
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Edit-2..................it's about brake cooling.
http://www.formula1-dictionary.net/wheel_shrouds.html
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We witnessed significant rule change for 2010. The wheel shrouds have been banned after a couple of incidents last season where they came off at speed.
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Originally Posted by ennored
I think you're all missing the basics. Relative to the ground (and air) the top of a wheel is traveling at twice the road speed. The bottom is not moving.
Fairing the top half will have MUCH higher gains than doing the bottom.
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It would be interesting if the flow were straightened, just saying.
As it is now, I cannot even start to separate out the different forces and reach a conclusion.