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Old 09-16-2013, 08:24 PM   #61 (permalink)
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Old 09-16-2013, 09:43 PM   #62 (permalink)
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Why we should go for Aerodynamic Designs ?
Why we should go for Aerodynamic Designs ? | pandeyaerospace


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Video: Aerodynamic Testing of the Chevrolet Camaro ZL1



HowStuffWorks "How Stock Car Aerodynamics Work"


2013 Chevy Volt | Electric Car | Chevrolet


Race Tech in a Wind Tunnel for Bonneville and Drag Racing | MyRideisMe.com


Race Tech in a Wind Tunnel for Bonneville and Drag Racing | MyRideisMe.com


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Image above: In wind-tunnel testing, the inflated wing's "bumpy" profile improves aerodynamic performance by reducing flow separation in low-density, high-speed flight conditions expected for Mars flight. Credit: University of Kentucky
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Old 09-16-2013, 09:50 PM   #63 (permalink)
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With misinformation and factually incorrect statements swirling, Richard Wood is out to ease the turbulence
Aug. 1, 2012Rick Weber | Trailer Bodybuilder
With misinformation and factually incorrect statements swirling, Richard Wood is out to ease the turbulence | Trailers content from Trailer Body Builders

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Old 09-16-2013, 09:54 PM   #64 (permalink)
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2013 Ram 1500 Aerodynamic Testing | Wallpaper #67 iPad | 1024x768



http://www.usatoday.com/story/driveo...erado/2193169/
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Old 09-16-2013, 10:02 PM   #65 (permalink)
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Old 09-16-2013, 10:09 PM   #66 (permalink)
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Mercedes-Benz S-Class W222 Aerodynamic Testing - Photo #1 from "Mercedes-Benz Has the Most Aerodynamic Car Range in the World"


Mercedes-Benz Aerodynamics – Complete story | Mercedes-Benz Digest News


Volvo Wind Tunnel

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Old 09-16-2013, 10:21 PM   #67 (permalink)
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Some worms eye view CFD.


2. The Most Important are the Aerodynamic Changes on the Under-body of the Vehicle!
6 TIPS Why Better Aerodynamics provides Better Fuel Economy!



5. It is All about Coefficient of Drag!
6 TIPS Why Better Aerodynamics provides Better Fuel Economy!



6.The Importance of the Airflow!
6 TIPS Why Better Aerodynamics provides Better Fuel Economy!
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Old 09-16-2013, 10:25 PM   #68 (permalink)
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Lawrence Livermore National Lab, Navistar work to increase semi-truck fuel efficiency
Full-scale tests taking place in world’s largest
wind tunnel at NASA Ames

https://www.llnl.gov/news/newsreleas...-10-02-08.html


Quote:
Aerodynamic drag is caused from pressure differences around the vehicle. At highway speeds, a semi-truck uses more than 50 percent of the energy produced by the vehicle engine to overcome aerodynamic drag, while rolling resistance consumes roughly 30 percent of the usable energy.
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Old 09-16-2013, 11:57 PM   #69 (permalink)
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Quote:
Originally Posted by kach22i View Post
2. The Most Important are the Aerodynamic Changes on the Under-body of the Vehicle!
6 TIPS Why Better Aerodynamics provides Better Fuel Economy!
This picture exert from one of my aero books shows areas to target with biggest benefit for underbody of vehicles.



Quote:
Originally Posted by kach22i View Post
5. It is All about Coefficient of Drag!
6 TIPS Why Better Aerodynamics provides Better Fuel Economy!
I think CdA is better than just Cd to use personally. If you increase the area while decreasing the Cd might not gain you anything mpg wise.
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Old 09-17-2013, 10:55 AM   #70 (permalink)
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Quote:
Originally Posted by cfd_guy View Post
I think CdA is better than just Cd to use personally. If you increase the area while decreasing the Cd might not gain you anything mpg wise.
Yes and no, it's not a linear relationship.

A recent discussion comparing the GM EV-1 Impact to the smaller first generation Honda Insite was quite reveling.

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