Re: 737-400 Vortex generators

Date:         16 Sep 99 16:42:50 
From:         Ernie Fidgeon <efidgeon@videon.wave.ca>
Organization: MBnet Networking Inc.
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Your on the right track.

My understanding is that the generator causes the local flow to rotate
downwards onto the wing in the areas where separation starts from the
airfoil.  This downward flow delays or prevents separation and improves lift
performance.  Not sure what the drag impact is.  I have a colleague who just
finished engineering and did some vortex generator experiments with an
airfoil intended for the SAE heavy lift competition.  Even at his Reynolds
numbers he found a significant lift improvement.

cheers

--
EF

"But... I don't think of you."
Howard Roark