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Old 08-27-2012, 07:16 PM   #19 (permalink)
aerohead
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Papers

Quote:
Originally Posted by AndyL View Post
Here's what I'm pondering tank wise - 18x18x36" (maybe 48") test section, not sure on flow rate, need to come up with some target numbers for flow - that dictates a fair bit of the plumbing and design, in run and outflow - kinda like to be able to keep it on a 24x72" workbench, but we know how that works...

luckily the aquariums have me in ownership of some big pumps, got a few to choose from, up to a 6000gph monster, but they're not so speed adjustable, so guess a NEMA 17 steppers going to have to get adapted to a knife valve for flow rate control...
Andy,I found what I was thinking about:
SAE Paper# 860091,"Aerodynamic Drag Studies on Rolling Vehicles by Underwater Tow Testing," by Mark L. Vorwaller and Geoff J. Germane,Brigham Young University.
They pulled a 9.5" long,and 2" tall model under 2-feet of water,in a 42-inch wide trough,at 11.761 mph.
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They also cite:
SAE Paper # 760189,"A Parametric Investigation of the Validity of 1/25 Scale Automobile Aerodynamic Testing," by M.E.Doberenz and B.P.Selberg.
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SAE is online and you could probably order the papers or facsimiles, or download them.They might save you a ton of time.
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