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Old 09-04-2011, 05:54 PM   #15 (permalink)
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Rokeby -

Originally Posted by Rokeby View Post
I'm beginning to wonder if the "open rim" is purely a computer-based
phenomena. The picture shows only a center hub cylinder and a thin rim
cylinder with nothing in between.

Attachment 9392

Taken literally, this would mean the results are meaningless!

Yeah, it seems to be mostly CFD, but page 21 and 22 imply a scale model with axles to turn wheels in a wind tunnel. On page 23 it says "Validation was carried out based on a 'classic' Ahmed body but with moving ground plane, results were acceptably good", but I wonder what acceptably good means.


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