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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-13-2008, 09:18 AM   #1 (permalink)
6'8" Comfor and Safty
 
Join Date: May 2008
Location: North Georgia Hills
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Low-Drag Trucks: Aerodynamic Improvements & Flow Control System Boost Fuel Efficiency

http://gtresearchnews.gatech.edu/new.../truckfuel.htm

The big rig drivers should appreciate this one, but here is my question. Could the wings be modified for SUB and Van owners. I imagine xB owners could benifit as well.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-13-2008, 10:08 AM   #2 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,020

CM400E - '81 Honda CM400E
90 day: 58.68 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,339
Thanked 2,417 Times in 1,462 Posts
I would say yes they could. They are essentially a mini-boat tail like Andrew has on his Civic.
__________________
Current project: Adding regenerative braking to the Mirage
  Reply With Quote
Old 06-13-2008, 11:39 PM   #3 (permalink)
Boxhead
 
whokilledthejams's Avatar
 
Join Date: May 2008
Location: Fredonia, NY
Posts: 322

Boxy Brown - '04 Scion xB
90 day: 35.48 mpg (US)
Thanks: 0
Thanked 1 Time in 1 Post
Send a message via AIM to whokilledthejams
I think we could benefit from anything that offsets the toasterness, really. Failing that, I could just avoid the interstate system entirely.
__________________
  Reply With Quote
Old 06-14-2008, 01:53 PM   #4 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 10,504
Thanks: 16,273
Thanked 5,586 Times in 3,339 Posts
flow control

certainly,there is no physical boundary that would prevent such a thing to benefit vans and SUVs.This kind of research is in at least it's second decade of work. So far,the energy balance comes out on the side of the atmosphere.The energy required to pump the air,exceeds the energy saved in drag reduction,for a net loss in efficiency. I personally belong to the Clarence"Kelly"Johnson' school of KISS ( keep it simple stupid! ) and like others,believe the class-8 truck and semi-trailer requires a complete re-think.Fifteen years ago there were bus designs with Cd 0.20. Renault had a 18-wheeler with Cd 0.318. And no moving parts!!!!!! I think these would serve as appropriate starting points,as they work.A heroin addict may argue that his problem lay in the design of the syringe,however,I believe the problem occurs at a deeper level. I'm sure Georgia Tech is having a great time making bonfires out of my tax dollars.I do believe the money could be better spent elsewhere.Great article,now I'm going to go and shoot myself.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 06-15-2008, 10:54 PM   #5 (permalink)
Hermit
 
Join Date: Mar 2008
Location: The woods
Posts: 42

Aubergine - '94 Ford Ranger 4x4
90 day: 19.14 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
The under wing was interesting. I have wondered recently if there would be any value in streamlining my Ranger rear axle (in combo with belly pan/side skirt), if only to add downforce and counteract potential lift issues of an aeroback.

It seems like such an easy change. After decades, how hard could it be to put some rounded extensions on a box?
__________________
  Reply With Quote
Old 06-16-2008, 12:38 AM   #6 (permalink)
EcoModding Apprentice
 
Join Date: Apr 2008
Location: Brunswick, Ohio
Posts: 121

Danger Ranger - '01 Ford Ranger Edge 4x4
90 day: 14.52 mpg (US)

Moms car - '05 Ford Freestyle Limited
90 day: 21.92 mpg (US)

Mistress - '10 Harley-Davidson 883 Sportster 883 Iron
90 day: 42.53 mpg (US)
Thanks: 0
Thanked 1 Time in 1 Post
Send a message via AIM to meemooer
Kindda funny how the article is from January of 2005!!
what have they been waiting on? why doesn't someone[company] just build something cheap, slap it on a truck and see if it works at all. 0.5mpg better is a big money saver on a big rig

__________________
Randy
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
CdA list Daox Aerodynamics 161 05-27-2019 09:09 AM
Fuel Economy related papers tasdrouille General Efficiency Discussion 38 09-10-2017 01:48 AM
Honda IACV explained TomO Off-Topic Tech 16 12-21-2015 02:49 AM
The Mechanism Behind Flow Separation LostCause Aerodynamics 46 07-15-2010 08:38 AM
Sources of Aerodynamic Drag in Automobiles and Possible Solutions SVOboy Aerodynamics 12 02-17-2010 03:09 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com