12-02-2021, 04:59 PM
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#921 (permalink)
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first picture
Also, the smoke wand is about level with the top of the roof to begin with, and then the smoke 'descends' towards the bonnet before rising again 'level.'
None of the images appear to show at least a 20-mph air velocity, a minimum for critical Reynolds number. Shame!
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01-22-2022, 11:04 AM
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#922 (permalink)
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Proof That Bertoni Applied Kamm Tail Benefits to the Sleek DS
https://citroenvie.com/proof-that-be...-the-sleek-ds/
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01-22-2022, 01:27 PM
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#923 (permalink)
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Does it prove that? Separation starts at the B-pillar. 
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01-24-2022, 11:47 AM
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#924 (permalink)
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Citroen
Quote:
Originally Posted by kach22i
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I'd sure like to know what the Reynolds number was during testing. Something just doesn't sit right.
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01-24-2022, 01:50 PM
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#925 (permalink)
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Quote:
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I'd sure like to know what the Reynolds number was during testing. Something just doesn't sit right.
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And the scale. Maybe it's 1/43rd.
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01-24-2022, 02:23 PM
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#926 (permalink)
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1/ 43rd
Quote:
Originally Posted by freebeard
And the scale. Maybe it's 1/43rd.
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That would help answer the question.
At that scale, you'd need an 860-mph blow just to achieve critical Rn.
And of course, that's beyond supersonic.
Unless it's in a pressurized tunnel. That would be critical information.
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02-02-2022, 06:26 PM
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#927 (permalink)
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Styling, Fins, and Aerodynamics: Virgil Exner's 1957 Report and the Dart Concept Car
https://www.allpar.com/threads/styli...pt-car.227882/
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George
Architect, Artist and Designer of Objects
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You cannot sell aerodynamics in a can............
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05-01-2022, 08:18 AM
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#928 (permalink)
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Rather curious that the rear wind tunnel shot does not show smoke.
Maybe something happening there that gets ugly?
Toyota Supra
https://www.motortrend.com/cars/toyo...9-6a8d4727b56a
https://www.carsdirect.com/2021/toyota/supra/specs
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George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
Last edited by kach22i; 05-01-2022 at 09:41 AM..
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05-01-2022, 10:30 AM
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#929 (permalink)
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I believe you are correct about the aft flow
Move along folks nothing to see here
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05-02-2022, 10:46 AM
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#930 (permalink)
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2021 Supra
ROAD & TRACK provided a technical image of the Supra after its debut.
The rear spoiler upper trailing edge is right on the AST-III contour.
As Dodge did with Viper. And Pete Brock's, All American Racing, Shelby Daytona Coupe.
Wolf H. Hucho might have mentioned that lift and drag would have been better had they just lofted the contour to that of the AST.
Reasons why they wouldn't include:
* degraded rear vision out the backlight.
* Added weight.
* Front/rear weight bias.
* A hit to polar moment of inertia.
All, something outside the wish-list for 'performance' cars.
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