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Originally Posted by myself
I'll be looking at the Roger Wood story to find out what is said about 'passive porosity'.
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Interesting article. Some observations:
- Reynolds number is important in interpreting wind tunnel results and explains why little stick-on tabs won't affect the air around a larger vehicle.
- Roll- up door instead of swing door equals free box cavity.
- "The sides and top of a trailer do not generate pressure drag, not even in crosswinds."
As for passive porosity, I found:
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Originally Posted by Google
[PDF] SIMULATION OF FLOWS WITH PASSIVE POROSITY - ICAS is
http://www.icas.org/ICAS_ARCHIVE/ICA...102.PDF
by NT Frink - 2002 - Cited by 2 - Related articles
ICAS 2002 CONGRESS. 2102.1. SIMULATION OF FLOWS WITH PASSIVE POROSITY ... International Council of the Aeronautical Sciences, with permission |
I hope they don't mind my sharing this:
It's pretty exciting. My panel van will have a full PolyMetal bellypan and a boattail made from Goodwill trampolines.