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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-02-2020, 09:27 AM   #3621 (permalink)
Master EcoModder
 
kach22i's Avatar
 
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 View Post
.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 View Post
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............
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 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.
  Reply With Quote
Old 11-02-2020, 01:04 PM   #3623 (permalink)
Master EcoModder
 
kach22i's Avatar
 
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 View Post
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............
  Reply With Quote
Old 11-02-2020, 01:52 PM   #3624 (permalink)
Master EcoModder
 
freebeard's Avatar
 
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.
  Reply With Quote
Old 11-02-2020, 02:07 PM   #3625 (permalink)
EcoModding Apprentice
 
Bicycle Bob's Avatar
 
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805

Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
Thanks: 91
Thanked 460 Times in 328 Posts
Quote:
Originally Posted by freebeard View Post
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.
  Reply With Quote
The Following User Says Thank You to Bicycle Bob For This Useful Post:
freebeard (11-02-2020)
Old 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
I started a BAT thread:

https://ecomodder.com/forum/showthre...tml#post635459
  Reply With Quote
Old 11-03-2020, 10:19 AM   #3627 (permalink)
Thalmaturge
 
Join Date: Mar 2011
Location: The edge of nowhere
Posts: 1,164

Spicy Italian - '13 Fiat 500 Abarth

eBike - '94 Trek Mountain Track 820

CHONK - '18 Honda Clarity
Thanks: 766
Thanked 643 Times in 429 Posts
A 1969 Falcon racecar vs the 1962 Falcon is was based on. Loving that kammback.



Attached Thumbnails
Click image for larger version

Name:	123216640_3567799256610028_5236695636460083456_o.jpg
Views:	245
Size:	72.9 KB
ID:	29498   Click image for larger version

Name:	123479191_3615202051834861_8830363737921104472_o.jpg
Views:	212
Size:	102.3 KB
ID:	29499  
  Reply With Quote
The Following 5 Users Say Thank You to samwichse For This Useful Post:
COcyclist (11-09-2020), freebeard (11-03-2020), kach22i (11-03-2020), NeilBlanchard (11-12-2020), sgtlethargic (11-03-2020)
Old 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 View Post
A 1969 Falcon racecar vs the 1962 Falcon is was based on. Loving that kammback.
How and where did you find the Falcon racecar?
  Reply With Quote
Old 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
>>>
Attached Thumbnails
Click image for larger version

Name:	800px-Ford_Falcon_V8_Angostado_-_Carlos_Reutemann_02.jpg
Views:	48
Size:	91.4 KB
ID:	29501  
  Reply With Quote
The Following User Says Thank You to sgtlethargic For This Useful Post:
freebeard (11-03-2020)
Old 11-03-2020, 05:01 PM   #3630 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,179
Thanks: 127
Thanked 2,802 Times in 1,968 Posts
Superlite Aero SLC
Aero — Superlite Cars





__________________
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..
  Reply With Quote
The Following 2 Users Say Thank You to kach22i For This Useful Post:
aerohead (11-11-2020), freebeard (11-03-2020)
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric Cars Push Japan Engine Parts Makers to Crisis Mode tjts1 The Lounge 14 12-23-2012 01:47 PM
Name that Eco Car! Quiz: identify these aerodynamic production cars MetroMPG Aerodynamics 16 08-30-2009 06:24 AM



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