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Old 07-07-2008, 11:02 PM   #50 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,527

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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Quote:
Originally Posted by .Cd View Post
Do you think that fences ( the green things in the image) would channel the air into a straighter flow, or just cause more turbulence?
Any raised edge that's not parallel to the flow will trip the air. Angled raised edges will spawn vortices.

The angle of the flow shown by the outer 2 columns of tufts on the upper surface is actually fairly close to parallel to the taper of the side of the Kammback. The angle of the photo and the tape line make it look worse than it really is, I think.
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