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Old 10-19-2012, 07:06 PM   #23 (permalink)
COcyclist
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TDi - '04 VW Golf
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Quote:
Originally Posted by aerohead View Post
The subtle convexity lowers drag (as with GOODYEAR's streamline tires for aircraft) compared to a flat disc.
When I picture this from above I see the back half of a truncated Kamm tail. Perhaps the slight frontal area penalty is more than offset by the air coming together more smoothly behind the tire phantom boattail.
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Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.

Last edited by COcyclist; 10-20-2012 at 06:35 PM..
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