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Old Oct 10, 2012, 06:28 AM
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Quote:
Originally Posted by Mitchell Covell View Post
I managed to find that article: http://www.public.iastate.edu/~huhui...orrugation.pdf

Definitely worth a read.
Yep,

That's an interesting read. It does show very well the benefits of turbulation at low Re numbers, but I suspect they structured the test in a way that was very biased toward gaining favourable results for their corrugated airfoil idea. For instance:
  • Why only test against a streamline airfoil designed for high Re # and a flat plate?
  • Why not test against a streamline airfoil specifically designed for use at very low Re numbers?
  • Why not compare the corrugated airfoil to a low Re airfoil that had conventional turbulation strips added?
  • Why only one Re number tested?
I'm guessing the single Re was due to time/budget constraints but it would have cost nothing extra to compare the corrugated airfoil against something that represented the best that traditional low Re airfoil technology had to offer.


Steve
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