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Old 04-12-2010, 05:22 PM   #23 (permalink)
aerohead
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out there

Quote:
Originally Posted by AeroModder View Post
I see. So the "Kammbacks" used in mass-produced vehicles today fall short of the ideal angle. I was thinking more along the lines of what is out there than the idealized version. My mistake.
I suspect that automakers would prefer we look at 'styling',not engineering.They may get to engineering one day.Don't know.
The most current example of a perfect Kamm-back is the 2008 Mercedes-Benz Boxfish concept.With only 32% aft-body they achieve Cd 0.19.
By comparison,The 2nd-gen VW 1-Liter car,with more aggressive ( steeper ) roof-line and diffuser,can't even get to Cd 0.19,and that's with 45% aft-body.
The air really likes the Kamm-back and occasionally the wind tunnels get a nice example for which to remind us.
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