Winglets and bumpy paint? - Page 4 - Fuelly Forums

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Old 06-29-2007, 11:04 PM   #31
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Well, it's the return of winglets and bumpy paint. As it turns out, Mitsubishi Motors experimented with dimples (aka, bumpy paint) to "delay flow separation" because the dimples/bumps modify the Reynolds number to make the cd a fraction of what it would normally be before they settled on vortex generators. I feel so vindicated, like I've been reborn anew. Nah, that's the beer talking. Here's the link.
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Old 06-30-2007, 09:52 PM   #32
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Interesting paper. I think it's interesting that while Mitsubishi has taken the VG approach for their Evo, Subaru went with the more obvious roof spoiler solution. I wonder what the specifics are on the spoiler approach.
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Old 07-01-2007, 01:14 PM   #33
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Quote:
Originally Posted by HEK View Post
Use 3M automotive adhesive tape to attach the winglets instead of drilling holes. Follow directions and clean surface, alcohol.
The winglets I've put on so far are on the plastic bumper covers so drilling holes isn't a big thing.

I'm negotiating with a manufacturer of vortex tabs for the truck. I've got to do some tuft testing next. There are several Dodge truck owners that have had excellent results (in the range of 9 mpg) with vortex creation.
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-Now featuring front wheel canards!
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