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Old 03-19-2011, 01:26 PM   #24 (permalink)
Vekke
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Join Date: Jan 2009
Location: Kitee (Finland)
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Quote:
Originally Posted by aerohead View Post
Typically,you need 6-pipe diameters length of tunnel to kill vorticity and get nice even laminar flow into the test section.If yo do circulation,you can save on power but you have to do alot of full area turning-vanes at every corner and then maybe flow-straighteners before the test section.
There is the answer so 6x width of the tunnel?
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