Quote:
Originally Posted by aerohead
The issue for the hood angle would be at the leading edge,not the cowl area.If you'll go the the FLOW-IMAGES thread you'll find many wind tunnel images which illustrate acceptable flow over the windshield in spite of cowl ventilation induction.
The article might mention that the entire car has a bubble out in front of it.This can be clearly seen in any wind tunnel photo.
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Read the whole thing. There is a whole section about nose design and separation. They're talking about the hood and windshield angles in the part I was referring to and even showed a diagram of the "bubble".
A flow image doesn't tell you what the vehicle's drag is. Look at the example of the fine looking smoke trails... looks great but doesn't tell you that the Cd of a Ford Escape is 0.4.... And how about the VW Beetle Frank posted? The lines look great, but the Beetle has a Cd of 0.49!