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Old 08-16-2011, 05:36 PM   #18 (permalink)
kach22i
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Quote:
Originally Posted by Frank Lee View Post
Maybe pressurized air can be fed to the mirrors for air curtains?
All good observations, and logical.

The quote above does remind me of a few other things.

Engineering and Fabrication Techniques for Low-Noise-Research Fan Blades


FanWing Pictures


Like others have observed, a lot of work-around for just a little gain.

CdA,:
Automobile drag coefficient - Wikipedia, the free encyclopedia
Quote:
The combination of drag coefficient and area - drag area - is represented as CdA (or CxA), a multiplication of the Cd value by the area.
I guess this is the crux; how much larger can you make the mirror body for the sake of smooth flow before the surface area drag undoes the gain?
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Last edited by kach22i; 08-16-2011 at 05:42 PM..
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