Quote:
Originally Posted by NeilBlanchard
Hi folks,
Can I ask what is the intended aerodynamic function of these side skirts?
Personally, it feels a bit counterintuitive -- I would think that you want to have air "escape" out from under the car; and not to trap it under the car. And none of the ultra-low Cd cars that I am aware of have anything like this.
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They're borrowed from racing where they segregate the flow between sides and bottom (as pickups are using step rails today),making a 'flush' pathway for the air across the tires.Sometimes,air fence flow straighteners are added to keep the air moving longitudinally,not transversly).
The John Shinella' Trans Am Firebird units were shown in the Lockheed tunnel to cut drag.
Lower skirts have been used in ground-effects cars,but I don't think there's a drag advantage.
IMHO I would not have them lower than the belly.I used them on the CRX
