A possible future "dirty butt" solution....
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 6,709
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From: Pacific Northwest
St. Jude Donor '06
A possible future "dirty butt" solution....
On page 39 of the December issue of Motor Trend is an interesting article about the "Coanda effect" and how its application to autos might decrease drag and, therefore, increase fuel economy. Reading in between the lines also suggests that it may very well be the solution to our dirty butt problem! It'll be interesting to see if this technology makes it's way to the Corvette. If so, we'll probably end up with rounder and cleaner butts and about 3mpg better on the highway!
Burning Brakes
Joined: Jul 2006
Posts: 1,230
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From: Sulphur LA
On page 39 of the December issue of Motor Trend is an interesting article about the "Coanda effect" and how its application to autos might decrease drag and, therefore, increase fuel economy. Reading in between the lines also suggests that it may very well be the solution to our dirty butt problem! It'll be interesting to see if this technology makes it's way to the Corvette. If so, we'll probably end up with rounder and cleaner butts and about 3mpg better on the highway!
Burning Brakes
Joined: Jun 2008
Posts: 1,096
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From: Chesapeake Va
Race Director
Joined: Dec 2007
Posts: 19,030
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From: Maumelle Arkansas
St. Jude Donor '13-'14-'15-'16-'17
Not sure about the application
Remember early streamlined design for land speed record cars had long tear drop rear ends. It wasn't very practical for race cars so the Coanda rear end concept was applied on LeMans type race cars, with the squared off rear end.
It was almost as efficient as the long tail cone, considering the extra weight and skin friction drag was less without the cone.
I haven't read the article, but I'm sure it would not be practical to add a 6 foot tail cone to the Vette. I'll stick with the current design.
LJ
It was almost as efficient as the long tail cone, considering the extra weight and skin friction drag was less without the cone.
I haven't read the article, but I'm sure it would not be practical to add a 6 foot tail cone to the Vette. I'll stick with the current design.
LJ
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Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 6,709
Likes: 1
From: Pacific Northwest
St. Jude Donor '06
Remember early streamlined design for land speed record cars had long tear drop rear ends. It wasn't very practical for race cars so the Coanda rear end concept was applied on LeMans type race cars, with the squared off rear end.
It was almost as efficient as the long tail cone, considering the extra weight and skin friction drag was less without the cone.
I haven't read the article, but I'm sure it would not be practical to add a 6 foot tail cone to the Vette. I'll stick with the current design.
LJ
It was almost as efficient as the long tail cone, considering the extra weight and skin friction drag was less without the cone.
I haven't read the article, but I'm sure it would not be practical to add a 6 foot tail cone to the Vette. I'll stick with the current design.
LJ
I don't think the more rounded shape would be nearly as pronounced as the 'long tail cones' you refer to.
Safety Car
Joined: Mar 2005
Posts: 3,639
Likes: 8
From: Madison Wisconsin
St. Jude Donor '08
Or they could just do what Mythbusters did on a recent episode. Cover teh car with dimples like a golf ball where they actually achieved better mileage using the same principles of why dimples allows a golf ball to soar further with less drag. 
http://www.autoblog.com/2009/10/22/m...-dimpling-mpg/
http://www.autoblog.com/2009/10/22/m...-dimpling-mpg/
Drifting
Joined: Sep 2009
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From: Forestville CA
Team Owner
Joined: Jun 2005
Posts: 46,295
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From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
I haven't read this article about the anaconda tail, but I thought the design of the Corvette tail originated from way back, like the "Kamm tail," which I think started appearing in European cars back in the 60s.
See: http://en.wikipedia.org/wiki/Kammback
See: http://en.wikipedia.org/wiki/Kammback
Race Director
Joined: Dec 2007
Posts: 19,030
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From: Maumelle Arkansas
St. Jude Donor '13-'14-'15-'16-'17
I haven't read this article about the anaconda tail, but I thought the design of the Corvette tail originated from way back, like the "Kamm tail," which I think started appearing in European cars back in the 60s.
See: http://en.wikipedia.org/wiki/Kammback
See: http://en.wikipedia.org/wiki/Kammback
LJ
Melting Slicks
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From: A galaxy far, far away...
St. Jude Donor '12 thru '26
I guess it's a fair trade
Goon Squad King of Battle
Joined: May 2008
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From: 🐑🐑🐑🐑🐑🐑🐑🐑🐑🐑🐑
St. Jude Donor '08 thru '23
Drifting
Joined: Sep 2009
Posts: 1,381
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From: Forestville CA
Too d@mn funny Raazor. Man, I just have to take a road trip to Big Sky country. I am thinking we could do some serious beer drinking, bench racing and tell lies. And then I'd have to drive back to Northern California by way of......Texas?