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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-17-2010, 02:42 AM   #1 (permalink)
Master EcoModder
 
orange4boy's Avatar
 
Join Date: Aug 2008
Location: The Wet Coast, Kanuckistan.
Posts: 1,275

The Golden Egg - '93 Toyota Previa DX
90 day: 31.91 mpg (US)

Chewie - '03 Toyota Prius
90 day: 57 mpg (US)

The Spaceship - '00 Honda Insight
Thanks: 100
Thanked 306 Times in 178 Posts
1923 Persu Streamliner

From the wik:

Quote:
Aurel Persu (1890-1977), was a Romanian engineer, and among the first to apply aerodynamics principles to automobiles. He came to the conclusion that the perfectly aerodynamic automobile has the shape of a falling water-drop.
Persu implemented his idea in 1922-1923 in Berlin, building an automobile that could reach very high speeds for that time, and it could take curves at up to 60 km/h. It was the first car to have the wheels inside its aerodynamic line, which we take for granted today. The car ran for 160,000 km and can be seen since 1961 in the "Dimitrie Leonida" Technical Museum [1] in Bucharest. The car is still working today.





__________________
Vortex generators are old tech. My new and improved vortex alternators are unstoppable.

"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.



Last edited by orange4boy; 02-17-2010 at 03:24 AM..
  Reply With Quote
The Following 4 Users Say Thank You to orange4boy For This Useful Post:
aerohead (02-17-2010), Arragonis (02-20-2010), Cd (02-17-2010), Piwoslaw (02-17-2010)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-17-2010, 03:34 AM   #2 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,745

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,324
Thanked 749 Times in 476 Posts
Very weird-looking and unfunctional by today's standards, but quite nice in the eye of an ecomodder.

On the second and third pictures, notice the little shade/visor above the driver's side windshield. That must have killed airflow.
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
Old 02-17-2010, 04:17 AM   #3 (permalink)
Master EcoModder
 
orange4boy's Avatar
 
Join Date: Aug 2008
Location: The Wet Coast, Kanuckistan.
Posts: 1,275

The Golden Egg - '93 Toyota Previa DX
90 day: 31.91 mpg (US)

Chewie - '03 Toyota Prius
90 day: 57 mpg (US)

The Spaceship - '00 Honda Insight
Thanks: 100
Thanked 306 Times in 178 Posts
Certainly not what you might call an aesthetic success.
__________________
Vortex generators are old tech. My new and improved vortex alternators are unstoppable.

"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.


  Reply With Quote
Old 02-17-2010, 10:50 AM   #4 (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
The shape of raindrops is dominated by surface tension. They are egg-shaped, without long, streamlined tails. Water drops running down a surface are probably the source of the analogy.
  Reply With Quote
Old 02-17-2010, 06:08 PM   #5 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,256
Thanks: 24,382
Thanked 7,359 Times in 4,759 Posts
hucho

Hucho referred to this car as the first ever based on a streamline body of revolution.The performance speaks for itself.
My first glimpse of this car.Thank you mucho!
  Reply With Quote
Old 02-17-2010, 06:56 PM   #6 (permalink)
Master EcoModder
 
doviatt's Avatar
 
Join Date: Mar 2009
Location: Utah
Posts: 388

Grey Goose (Retired) - '89 Geo Metro LSI 4 door hatch back
Last 3: 57.16 mpg (US)

Tweety - '91 Geo Metro Convertible -2 Door convertible LSI
Team Metro
90 day: 43.97 mpg (US)

Shadow - '02 Honda Shadow VT1100
90 day: 43.46 mpg (US)

Sonic - '07 Honda CBR1000RR
90 day: 42.69 mpg (US)

Filmore - '84 Volkswagen Vanagon
90 day: 20.9 mpg (US)
Thanks: 47
Thanked 44 Times in 31 Posts
Quote:
Originally Posted by Piwoslaw View Post
On the second and third pictures, notice the little shade/visor above the driver's side windshield. That must have killed airflow.
I wonder if that was "poor mans air conditioning"?
  Reply With Quote
Old 02-17-2010, 07:17 PM   #7 (permalink)
Pokémoderator
 
cfg83's Avatar
 
Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
Thanks: 439
Thanked 532 Times in 358 Posts
Bicycle Bob -

Quote:
Originally Posted by Bicycle Bob View Post
The shape of raindrops is dominated by surface tension. They are egg-shaped, without long, streamlined tails. Water drops running down a surface are probably the source of the analogy.
Yes and no. I said the same thing to my Dad, and he went through an extensive proof that the surface tension turns raindrops into spheres when they are on their own :



I agree with the analogy, though. Our artistic interpretation of rain is as lines. Also, I think that's what cameras can see, the "streak" of the falling raindrop :



CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote
Old 02-17-2010, 10:09 PM   #8 (permalink)
Master EcoModder
 
Join Date: Jan 2009
Location: Maui, Hawaii
Posts: 813
Thanks: 5
Thanked 34 Times in 26 Posts
Looks like it would be the Ambiguously Gay Duo's truck
  Reply With Quote
Old 02-18-2010, 03:31 AM   #9 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,745

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,324
Thanked 749 Times in 476 Posts
I also noticed that the distance between the rear wheels seems to be half that of the front wheels. It's almost a trike!
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
Old 02-20-2010, 04:38 PM   #10 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 536 Times in 384 Posts
Quote:
Originally Posted by Piwoslaw View Post
Very weird-looking and unfunctional by today's standards, but quite nice in the eye of an ecomodder.

On the second and third pictures, notice the little shade/visor above the driver's side windshield. That must have killed airflow.
That the opening front window slot, can be seen on the original photo too. One question I have, did the front lights swivel too ?

__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Vetter Streamliner Helix SuperTrooper Aerodynamics 23 04-27-2009 05:09 PM
Vetter Streamliner Helix SuperTrooper Motorcycles / Scooters 0 06-15-2008 03:36 PM



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