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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-17-2019, 01:05 PM   #3251 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
https://www.pinterest.com/pin/466826317610396591/?nic=1


https://www.roadandtrack.com/car-cul...-2013/?slide=9


1992 Chevy Express Concept turbine engine
https://www.roadandtrack.com/car-cul...2013/?slide=12


https://www.thetruthaboutcars.com/20...e-car-program/

Quote:
It shouldn’t surprise us that GM dumped a bunch of money into an idea or technology, only to abandon that investment – see also Wankel rotary, Fiat, Hughes, et al. ...........

__________________
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
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-17-2019, 01:58 PM   #3252 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts

I like the templatey goodness more than the Chevy Express, except for ingress/egress although I think the huge Chevy doors would be hard to close by hand.

It looks like anti-face recognition dark glasses are catching on.

Bless their hearts, they tried to get the loft line right:


Just A Car Guy: wow, they really went and did a cool job with this bus decorated for the Coronation of King George VI and Queen Elizabeth (the Queen Mother), 1937

They artfully placed vortex generators all along the square edges.
_______________

edit:
I've been thinking.

Instead of a 50/50 morph with the Volkhart-Sagitta how about V-H V2 above the middle of the wheelwells and Aston Martin Valyrie below?

https://www.thedrive.com/news/28637/...urgring-record

I wonder how close I could get with my 1958 Beetle body. A wheelbase extension and four new pontoon fenders?

2nd edit:
The extension that moves the front axle-line forward, instead of welded tubing as is the norm, could be a monocoque box (similar to the Porsche Carrera GT) in aluminum or basalt fiber:

https://i.pinimg.com/originals/f9/dc...5cd933554a.jpg

3rd edit:
The too-fast Beetle body would be boxed in like another favorite car, the the Golf GTI w-12 650. This would preserve the cooling air if it's not electric:

So that's four cars rolled into one a fifth?
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________

Last edited by freebeard; 10-17-2019 at 06:15 PM..
  Reply With Quote
Old 10-18-2019, 09:53 AM   #3253 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Quote:
Originally Posted by freebeard View Post

I like the templatey goodness more than the Chevy Express........
It would be interesting to find out if the in profile template conforming but somewhat boxy Chevy Express outperforms the Fuldamobil Cd wise.

I'm sure that the curves and tangent angles of the Fuldamobil are too aggressive, but we have seen cars like the GM Impact (EV1) and aircraft canopies result in some impressively low Cd's.

http://oldconceptcars.com/1930-2004/...s-impact-1990/

Quote:
Late in 1996 General Motors, the biggest of America’s Big Three car makers, put the EV1, its first electric vehicle, into production. This iniative sprang from GM’s Impact concept car that was unveiled in 1990.
NOTE: I plan to insert a 3D 3/4 rear view of the AeroTemplate as soon as I can find it.

EDIT:
https://ecomodder.com/forum/showthre...c-9287-52.html

Quote:
Originally Posted by freebeard View Post
Here's the picture I did, that popped up in a thread I was reading:
Freebeard, where is the rear 3/4 view located?

EDIT-2:
Found one version of the AeroTemplate in 3D.

https://ecomodder.com/forum/showthre...c-9287-56.html
__________________
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; 10-18-2019 at 10:27 AM..
  Reply With Quote
Old 10-18-2019, 12:30 PM   #3254 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Quote:
Freebeard, where is the rear 3/4 view located?
???? I don't think there was one.

Ross Lovegrove combined the Template and Morelli:
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Old 10-19-2019, 10:14 AM   #3255 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,043
Thanks: 462
Thanked 1,104 Times in 974 Posts
Why is that a Gottingen style airfoil? Those are draggy as a boat anchor.
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
  Reply With Quote
Old 10-19-2019, 01:22 PM   #3256 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
https://duckduckgo.com/?q=Gottingen+...airfoil&ia=web

It would represent a Gottingen wingtip in ground effect. See Morelli.

My version of The Template in 3D:
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Old 10-20-2019, 01:39 PM   #3257 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
I couldn't find an existing thread in Fossil Fuel Free, so I'll drop this here:


https://newatlas.com/uniti-one-street-video/55659/


http://autoworld.com.my/news/2018/02...uto-expo-2018/

The fineness ratio sucks, so they promote the turning circle.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
NeilBlanchard (10-21-2019)
Old 10-21-2019, 09:34 AM   #3258 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
Which episode of Star Wars did that come from?
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
Old 10-21-2019, 10:56 AM   #3259 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Quote:
Originally Posted by freebeard View Post
[IMG]
edit:
I've been thinking.

Instead of a 50/50 morph with the Volkhart-Sagitta how about V-H V2 above the middle of the wheelwells and Aston Martin Valyrie below?
I did not respond because I could not visualize what you had in mind. Is there any way you can work up a sketch or two?

On my own passing thoughts regarding which is better, the Fuldamobil approach or GM Express; I sort of found a partial explanation Aerohead once gave that said the AeroTemplate works best when the car is wider than it is tall.

Assuming likewise: the tall and narrow shapes benefit most when tapering of the sides conform to AeroTemplate.

Meaning: Compare the GM Express to the AeroTemplate as we usually do - in profile/side view. And compare the Fuldamobil to the AeroTemplate in plan view to determine it's useful conformity.

Anyone is free to correct me or extend their own interpretation on this matter.

The reason for the two different uses of AeroTemplate in plan and profile/side views is the air pressure variables, and not attached flow characteristic that can often be scaled down versions of the AeroTemplate.

It is the air pressure differentials and resulting vortexes than make scaling down the AeroTemplate less effective. This is why the template goes down to the ground and is not applied to separate parts and pieces.

And now for an above average aerodynamic car for it's day.

Swedish Aircraft Company: From wings to wheels - SaabWorld

Quote:
In 1946, Saab aircraft engineer Gunnar Ljungström, designer Sixten Sason and a staff of 14 craftsmen hand-built prototype 92.001, also known as the UrSaab – a sleekly aerodynamic car that reflected its aircraft heritage; its unusual profile closely resembled the cross-section of an airplane wing.

The first four Saab prototype cars were unveiled to the world in 1947. Decades before the technology would come into vogue, Saab’s first automotive entries featured front-wheel-drive and transverse-mounted engines. Saab was one of the few cars of the 1940s to utilize wind tunnel testing, achieving an air resistance coefficient of only 0.30 Cd, a respectable figure even today.
__________________
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
Old 10-21-2019, 01:26 PM   #3260 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Quote:
Originally Posted by RedDevil
Which episode of Star Wars did that come from?
I thought it was the pedal car version of the Tesla semi.

kach22i — In theory yes. I bought a $4 second-hand copy of Photoshop Elements that runs on my $102.75 laptop. We'll see how my day goes.

__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Reply  Post New Thread


Thread Tools


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 12:47 PM
Name that Eco Car! Quiz: identify these aerodynamic production cars MetroMPG Aerodynamics 16 08-30-2009 05:24 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