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Old 02-09-2011, 10:56 AM   #178 (permalink)
Bicycle Bob
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Re Comuting

Quote:
Originally Posted by KamperBob View Post
I would love to build a wind tunnel for scale model testing. I've read that the smaller the model the higher the wind speed must be (for comparable Re) which doesn't compute on some level...
Re is length times speed, so the calculation is pretty simple to compensate for reduced size. Since the model does not have as much time to mess with the air, it has to try harder.
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