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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-27-2009, 12:31 PM   #1 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Trying to remember something about aero

I had an idea a few days ago, and while I was thinking about it, it seemed like a good idea... and that's as much as I remember.

I should have written it down, for sure. Undoubtedly, my Son needed something, and he's more important to me than my musings.

What I actually remember is that it had something to do with aerodynamics, and lift vs downforce.

I remember building a vehicle that was highway capable (obviously), but it was an open-wheel type vehicle.

I think the basic idea was to build the body in a streamline shape, without regard to lift, and then skirt the wheels to keep down force. The net result was a car that, while the body would lift some, would keep the tires planted to the ground, and only a small amount of the car's aero would be attributed to downforce, the rest would just be streamlined, without regard to lift.

That's all I've got though... and I just can't picture what I was thinking of.

Anyone have any ideas?

__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-27-2009, 01:12 PM   #2 (permalink)
EcoModding Apprentice
 
Join Date: Sep 2009
Location: Fresno, CA
Posts: 134

Deceptive - '98 Dodge Neon R/T
90 day: 44.38 mpg (US)
Thanks: 3
Thanked 17 Times in 13 Posts
ive been thinking of something similar, im thinking the ultimate in drag reduction would be to have 0 lift, positive or negative, hard to do in real life, but thats what im going to work towards in my car
__________________
  Reply With Quote
Old 09-27-2009, 01:17 PM   #3 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
THAT brings back something...

I think the cumulative effect was close to 0 lift, with the suspension providing the link to the anchors (tires) which were positively loaded by aerodynamics.
__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 09-27-2009, 03:36 PM   #4 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,752

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,581
Thanked 3,537 Times in 2,209 Posts
What th...?

Having a NET lift of 0 is a lot different than having neutral lift!

Lift=drag in any vector.

So you'd have the body's upward lift creating drag and the wheel spats fairings' downward lift creating drag.
__________________


  Reply With Quote
Old 09-27-2009, 06:37 PM   #5 (permalink)
Master EcoModder
 
Join Date: May 2009
Location: New Jersey
Posts: 389

2003 Ninja EX250 - '03 Kawasaki Ninja EX250
90 day: 78.57 mpg (US)

Saturn - '99 Saturn SL1 Base
90 day: 47.27 mpg (US)
Thanks: 25
Thanked 58 Times in 37 Posts
Quote:
Originally Posted by Frank Lee View Post
What th...?

Having a NET lift of 0 is a lot different than having neutral lift!

Lift=drag in any vector.

So you'd have the body's upward lift creating drag and the wheel spats fairings' downward lift creating drag.
Thats exactly what i was thinking....

The goal would be 0 lift in all directions (Most importantly going forward), not combined nuetral lift.
__________________
Doing my part to reduce dependence on OIL
Doing my part to reduce congestion
And enjoying it!

If you have to use your brakes, you are driving too fast!

My 101.5 MPG 2003 Kawasaki Ninja 250




Crude Oil Price Today
  Reply With Quote
Old 09-27-2009, 06:45 PM   #6 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Quote:
Originally Posted by Frank Lee View Post
What th...?

Having a NET lift of 0 is a lot different than having neutral lift!

Lift=drag in any vector.

So you'd have the body's upward lift creating drag and the wheel spats fairings' downward lift creating drag.
Hey, It was a half-idea that I thought about while doing 10 other things... I'm not even sure that was the real idea, but it seems familiar. I'm still working on remembering what it was, but as yet, I can't figure it out.
__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 09-27-2009, 08:03 PM   #7 (permalink)
Left Lane Ecodriver
 
RobertSmalls's Avatar
 
Join Date: Aug 2008
Location: Buffalo, NY, USA
Posts: 2,257

Prius C - '12 Toyota Prius C
Thanks: 79
Thanked 284 Times in 197 Posts
While reading the OP, I kept thinking of the Aptera. The body is shaped a bit like an airfoil, and the wheel fairings could be made wedge-shaped.

  Reply With Quote
The Following User Says Thank You to RobertSmalls For This Useful Post:
Christ (09-28-2009)
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
aero mods-data-% change or Cd change ( installment # 7-Wheels/Tires/Wheelcovers/etc. aerohead Aerodynamics 5 06-04-2014 12:14 PM
CRV Cross Country Trip Aero - Temporary Aero Just for the Trip walteraxe Aerodynamics 26 01-05-2010 11:37 AM
Another Autospeed aero article: methods for measuring aero drag Daox Aerodynamics 4 02-14-2008 12:34 AM
New user intro and pick-up aero modding Blackbird Aerodynamics 4 01-28-2008 12:06 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com