Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-02-2021, 05:59 PM   #921 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,320
Thanks: 24,442
Thanked 7,387 Times in 4,784 Posts
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!

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-22-2022, 12:04 PM   #922 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,187
Thanks: 132
Thanked 2,809 Times in 1,973 Posts
Proof That Bertoni Applied Kamm Tail Benefits to the Sleek DS
https://citroenvie.com/proof-that-be...-the-sleek-ds/
__________________
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............
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (01-24-2022)
Old 01-22-2022, 02:27 PM   #923 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,725
Thanks: 8,154
Thanked 8,936 Times in 7,378 Posts
Does it prove that? Separation starts at the B-pillar.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
Old 01-24-2022, 12:47 PM   #924 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,320
Thanks: 24,442
Thanked 7,387 Times in 4,784 Posts
Citroen

Quote:
Originally Posted by kach22i View Post
Proof That Bertoni Applied Kamm Tail Benefits to the Sleek DS
https://citroenvie.com/proof-that-be...-the-sleek-ds/
I'd sure like to know what the Reynolds number was during testing. Something just doesn't sit right.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 01-24-2022, 02:50 PM   #925 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,725
Thanks: 8,154
Thanked 8,936 Times in 7,378 Posts
Quote:
I'd sure like to know what the Reynolds number was during testing. Something just doesn't sit right.
And the scale. Maybe it's 1/43rd.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
The Following 2 Users Say Thank You to freebeard For This Useful Post:
aerohead (01-24-2022), kach22i (02-02-2022)
Old 01-24-2022, 03:23 PM   #926 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,320
Thanks: 24,442
Thanked 7,387 Times in 4,784 Posts
1/ 43rd

Quote:
Originally Posted by freebeard View Post
And the scale. Maybe it's 1/43rd.
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.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following 2 Users Say Thank You to aerohead For This Useful Post:
freebeard (01-24-2022), kach22i (02-02-2022)
Old 02-02-2022, 07:26 PM   #927 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,187
Thanks: 132
Thanked 2,809 Times in 1,973 Posts
Styling, Fins, and Aerodynamics: Virgil Exner's 1957 Report and the Dart Concept Car
https://www.allpar.com/threads/styli...pt-car.227882/






__________________
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............
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (02-07-2022)
Old 05-01-2022, 09:18 AM   #928 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,187
Thanks: 132
Thanked 2,809 Times in 1,973 Posts
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
Quote:
Drag Coefficient
.29
__________________
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 10:41 AM..
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
Piotrsko (05-01-2022)
Old 05-01-2022, 11:30 AM   #929 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,431
Thanks: 541
Thanked 1,208 Times in 1,065 Posts
I believe you are correct about the aft flow

Move along folks nothing to see here
  Reply With Quote
Old 05-02-2022, 11:46 AM   #930 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,320
Thanks: 24,442
Thanked 7,387 Times in 4,784 Posts
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.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com