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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-29-2017, 01:57 PM   #621 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 8,365
Thanks: 10,256
Thanked 4,395 Times in 2,438 Posts
540k

Quote:
Originally Posted by redneck View Post
.

1937/38 Mercedes Streamliner, the 540K Stromlinier









Go to 37:00 in video to see wind tunnel and smoke.





>
In the video somewhere,they mention measuring Cd 0.36 and change for this car,which would have been quite good back in the day.

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

Other popular topics in this forum...

   
Old 04-30-2017, 10:44 AM   #622 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
Some Thoughts on Aerodynamic Shapes


Some Thoughts on Aerodynamic Shapes
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (05-06-2017)
Old 05-06-2017, 02:31 PM   #623 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 8,771
Thanks: 1,906
Thanked 2,871 Times in 2,243 Posts
I'd previously mentioned Open VDB and what it portends. Now a SIGGRAPH preview reel pointed me to:


My current understanding of Clebsch Maps is that they represent the normals to the direction of flow. One point of interest, the Delta Wing Data Set, at 1:42, suggests that vortexes are not open-ended but are loops closed at the diffuse end (shown in the thumbnail).

Se also Fluid Processing at 0:56.
  Reply With Quote
The Following 2 Users Say Thank You to freebeard For This Useful Post:
aerohead (05-06-2017), sendler (05-07-2017)
Old 05-09-2017, 09:43 AM   #624 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
I've probably neglected the underbody in this tread.

Found this:
https://www.audi-technology-portal.d...tics/underbody

Quote:
A car produces 40 to 50 percent of its total aerodynamic drag in and around the underbody, the wheels and the wheel arches..........
Click link above to see video.
<iframe width="560" height="315" src="https://www.audi-technology-portal.de/video/261" frameborder="0"></iframe>
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html

Last edited by kach22i; 05-09-2017 at 10:12 AM..
  Reply With Quote
The Following 2 Users Say Thank You to kach22i For This Useful Post:
aerohead (05-13-2017), COcyclist (05-09-2017)
Old 05-09-2017, 10:10 AM   #625 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
https://mercedes-benz-blog.blogspot....s-emotion.html


Quote:
"This means that the CLA-Class is more streamlined than any other vehicle. .................

When it comes to compact cars like the new A-Class (2012, Cd = 0.26), coupés such as the E-Class Coupé (2010, Cd = 0.24), saloons such as the E-Class (2009, Cd = 0.25), sports cars like the SL (2012, Cd = 0.27) and SUVs like the M-Class (2011, Cd = 0.32), vehicles in these segments have never before achieved such low Cd figures. The new S-Class is set to continue this trend.
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (05-13-2017)
Old 05-14-2017, 09:56 AM   #626 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
Youtube video, Ford GT in wind tunnel at the Allen Park facility.

__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (05-20-2017)
Old 05-20-2017, 01:53 PM   #627 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 8,365
Thanks: 10,256
Thanked 4,395 Times in 2,438 Posts
smoke

Quote:
Originally Posted by kach22i View Post
Youtube video, Ford GT in wind tunnel at the Allen Park facility.

They were careful not to give away any useful information.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 05-20-2017, 07:48 PM   #628 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
Might be a repeat, but a classic.

https://mechanixillustrated.technica...-aerodynamics/
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (05-27-2017)
Old 05-20-2017, 08:13 PM   #629 (permalink)
Master EcoModder
 
gumby79's Avatar
 
Join Date: Dec 2014
Location: Butte, Montana
Posts: 508

little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
Last 3: 24.65 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO
Pickups
Team Cummins
90 day: 22.62 mpg (US)
Thanks: 155
Thanked 243 Times in 167 Posts
https://youtu.be/H_JbxcTvqUk
Ford F-150 front corners and tailgate Duck Tail explained .
At least the wide top. But no info on the duck butt pooch on the vertical part.
__________________
1st gen cummins 91.5 dodge d250 ,16cm turbo housing ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 29.3mpg 97mi 3.311usg 7/27/16



  Reply With Quote
The Following User Says Thank You to gumby79 For This Useful Post:
aerohead (05-27-2017)
Old 05-21-2017, 01:58 PM   #630 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
Quote:
Originally Posted by gumby79 View Post
https://youtu.be/H_JbxcTvqUk
Ford F-150 front corners and tailgate Duck Tail explained .
At least the wide top. But no info on the duck butt pooch on the vertical part.
Yea, I noticed the little Gurney Flap/Wickerbill on the tailgate ledge top.

Gotta wonder how well those things are going to wear under abusive work conditions.

__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com