Quote:
Originally Posted by Shepherd777
Modern funny cars travel almost 340 MPH in 1000 feet from a standing start. 
This Napa car, and many others, have little diverters or aero fences on the leading edge of their steering tire wheel wheels. Presumably to make the air jump across the wheel well opening.
Also notice the very large radii at the trailing edge of the wheel well opening.
I'm curious as to how a similar leading edge fence would do on my big truck, only doing 55-70 MPH. I always planned on trying VGs in this location.
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Bob,if you can locate a Tesla S take a gander at what they've done under the nose with the leading edge of the front wheel hour-glass openings.
They've got angled fairings to create this 'jump' and re-attachment beyond the rearward termination of the opening.
The scale of the fairing,with respect to the size of the opening may suggest something about 'sizing' and angles.
This is 'underbody' flow,and it's complicated with the ground plane,but it would be a beginning point perhaps.
