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Old 07-24-2015, 11:43 PM   #98 (permalink)
BabyDiesel
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Join Date: Dec 2012
Location: Johnston County, NC
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Quote:
Originally Posted by aerohead View Post
I picked up where NASA left off with their 'Shoebox' van streamlining and took it to completion.
Starting from their fully-boat-tailed Cd 0.238 van I:
*added body side camber (Buchheim,Deutenbach,and L'u'ckoff)
*added upper edge radii (Hucho)
*added roof camber (Buchheim,Leie,and L'u'ckoff)
*added wheel skirts (Heltemes,Tremulis,Cogotti,Garrone,and Masoero)
*added MOON-esque wheel covers (Shinella,Tsukada,Sakagami,Arai,and Takahara)
*and full wheel fairings (Tamai),allowing 50% of Tamai's factor allowing for wider tires (SWAG).


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We'd have to add back in some features drag associated with a working cooling system,wipers,and mirrors,but that's not a lot of fruit to put back on the tree considering the GM Precept concept car.
PS these are just estimates but should fall close to the tree.
Aerohead, your work on NASA's Shoebox has given me a wealth of ideas! It is impressive how adding the side body camber and adding radii the to the upper edge was worth a Cd value of 0.6 That is as much as all of my mods combined, minus the air dam

Could these be replicated on my Escort? I know that the side body camber will be next to impossible. What about the others?
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Past threads:
ZX2 modding thread
Ecomodder's Top 10: How they do it!
ZX2 Aerodynamics: Shooting for 0.15 Cd
ZX2 coast-down testing for Cd & Crr

Last edited by BabyDiesel; 07-25-2015 at 04:07 AM..
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