Quote:
Originally Posted by freebeard
I found this thread through Google Images!
I think this should be high-velocity. Otherwise a good summation of the concept, a variation on the Coanda nozzle.
kach22i -- Your link gets 403:Forbidden. I think I found it at Access forbidden!
To move things along, here's an interesting article that ties BMW's research to a museum about the Graf Zepplin:
BMW EfficientDynamics
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*The 3rd-gen X5 is reported at Cd 0.31
*The graphic shows that the wheelhouses and wheels are responsible for 30% of the total aerodynamic drag.
*That would be 0.093.
*Leaving 0.217 for the body in ground proximity.
*This is the most valuable info. I've seen in years!
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*When Morelli added wheelhouses and wheels to the CNR 'banana' car,the Cd leaped,from Cd 0.161,to Cd 0.35,a 0.189 increase,217%.
*A.Cogotti (of Pininfarina's wind tunnel) saw a drag increase,from Cd 0.073,to Cd 0.157 when he added wheelhouses and wheels to his experimental body.A 215% drag increase.
The wheelhouses alone raised drag by 163%.
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*The lower the drag of the basic body itself,the more important the wheel drag becomes
just like Hucho publishes.