11-02-2020, 09:27 AM
|
#3621 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,179
Thanks: 127
Thanked 2,802 Times in 1,968 Posts
|
Quote:
Originally Posted by redneck
.Sadly, there are no wind tunnel pics of the BAT cars.
|
Maybe something will pop up in the future, we can only hope.
I have never seen smoke in a wind tunnel actually expose a vortex.
The only time I've seen a vortex exposed was in the Aerodynamic Oddity thread video posted via NCAC 1941 with a wand and long feather like tuft strings twisting about a cube.
Sure I've seen still photos, and laser pulse images, and CFD images, just not rolling film footage of smoke in a wind tunnel.
Link:
https://ecomodder.com/forum/showthre...-35653-50.html
Quote:
Originally Posted by kach22i
An even better video, at the 1:15 mark is a simple device used to examining eddies and vortexes - something smoke really doesn't do well in my opinion.
Taking the Air (1941) NCAC
|
__________________
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............
|
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
11-02-2020, 11:01 AM
|
#3622 (permalink)
|
Master EcoModder
Join Date: Jun 2011
Location: Earth
Posts: 632
Thanks: 28
Thanked 148 Times in 116 Posts
|
Is the Cd known and undisputed for a BAT car?
If the curlers were effective, you'd think other cars would have them.
|
|
|
11-02-2020, 01:04 PM
|
#3623 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,179
Thanks: 127
Thanked 2,802 Times in 1,968 Posts
|
Quote:
Originally Posted by sgtlethargic
Is the Cd known and undisputed for a BAT car?
If the curlers were effective, you'd think other cars would have them.
|
Don't go throwing logic into the automotive industry, you will only turn away disappointed.
__________________
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............
|
|
|
11-02-2020, 01:52 PM
|
#3624 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,544
Thanks: 8,086
Thanked 8,878 Times in 7,327 Posts
|
Quote:
If the curlers were effective, you'd think other cars would have them.
|
What I find as much interesting as the tumblehome would be the slots. Are there other examples? The only one I can think of is the Oscar-class Belogrod submarine:
https://maritime-executive.com/media...rod.09eb88.jpg
These have active control surfaces. Maybe a Modern BAT would have active aero as well?
__________________
.
.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.
|
|
|
11-02-2020, 02:07 PM
|
#3625 (permalink)
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
Quote:
Originally Posted by freebeard
These have active control surfaces. Maybe a Modern BAT would have active aero as well?
|
I'd sure like to see somebody race a car with a vertical fin to produce side force directly instead of an inverted wing to complicate matters with downforce. The Dodge Daytona, which had large fins supporting its wing, was considered impossible to spin. Active fins would probably need computer control, but they could also sail in crosswinds, reducing fuel needs.
I also Really wish that Colin Chapman had built a bit of compliance into his original wing mounts, which went straight into the hub carriers instead of the chassis. The rigid structure proved fragile and got direct mounting banned, even though it was far more sensible overall.
AFAIR, The BAT cars were built to study the effect of increased surface area foremost. Road & Track had a decent article on them long ago.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
11-02-2020, 02:20 PM
|
#3626 (permalink)
|
Master EcoModder
Join Date: Jun 2011
Location: Earth
Posts: 632
Thanks: 28
Thanked 148 Times in 116 Posts
|
|
|
|
11-03-2020, 10:19 AM
|
#3627 (permalink)
|
Thalmaturge
Join Date: Mar 2011
Location: The edge of nowhere
Posts: 1,164
Thanks: 766
Thanked 643 Times in 429 Posts
|
A 1969 Falcon racecar vs the 1962 Falcon is was based on. Loving that kammback.
|
|
|
The Following 5 Users Say Thank You to samwichse For This Useful Post:
|
|
11-03-2020, 12:24 PM
|
#3628 (permalink)
|
Master EcoModder
Join Date: Jun 2011
Location: Earth
Posts: 632
Thanks: 28
Thanked 148 Times in 116 Posts
|
Quote:
Originally Posted by samwichse
A 1969 Falcon racecar vs the 1962 Falcon is was based on. Loving that kammback.
|
How and where did you find the Falcon racecar?
|
|
|
11-03-2020, 12:33 PM
|
#3629 (permalink)
|
Master EcoModder
Join Date: Jun 2011
Location: Earth
Posts: 632
Thanks: 28
Thanked 148 Times in 116 Posts
|
>>>
|
|
|
The Following User Says Thank You to sgtlethargic For This Useful Post:
|
|
11-03-2020, 05:01 PM
|
#3630 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,179
Thanks: 127
Thanked 2,802 Times in 1,968 Posts
|
__________________
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; 11-03-2020 at 05:07 PM..
|
|
|
The Following 2 Users Say Thank You to kach22i For This Useful Post:
|
|
|