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Originally Posted by botsapper
...hatchbacks and wagons have a more abrupt transition and at a larger cross section of the vehicle, while three-box sedans have a stepped and smoother transition into the wake zones. AutoSpeed - Low Drag Car Aerodynamics |
Not bad for such a short article.
Quote:
Cars with a near-vertical rear hatch have airflow separation that occurs at the end of the roof. This means that the wake is as large as the frontal cross sectional area of the car. People who locate spoilers half way down the rear hatch should realise that they are achieving nothing with this placement!
A large wake is also present on most station wagon designs. For example, the Cd of the AU Ford Falcon wagon is sedan is 0.341, versus the sedan’s 0.295.
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George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
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