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Search: Posts Made By: DRW
Forum: Aerodynamics 11-11-2010, 09:28 PM
Replies: 58
Views: 38,481
Posted By DRW
Re: Tubulence - Friend or Foe? | Here's a lot of Aero info, not spread in several thr

They did that on Mythbusters. They covered a car with bumps and compared fuel mileage and found the bumps helped. Yes, it helps but it also looks rediculous and isn't needed.

VG's help the air...
Forum: Aerodynamics 06-24-2008, 09:12 AM
Replies: 58
Views: 38,481
Posted By DRW
Dam, that's a lot of good info! I'll be reading...

Dam, that's a lot of good info! I'll be reading for weeks.
Forum: Aerodynamics 02-01-2008, 04:18 PM
Replies: 58
Views: 38,481
Posted By DRW
Those delta wing doodads are called vortex...

Those delta wing doodads are called vortex generators (VG's).
Forum: Aerodynamics 12-02-2007, 08:01 PM
Replies: 58
Views: 38,481
Posted By DRW
Ah! I edited my post at the same time you wrote...

Ah! I edited my post at the same time you wrote yours!

Erik, the trailing edge of the roof of your car is similar to the Insight. They both have a gently tapered rooflines terminating with a...
Forum: Aerodynamics 12-02-2007, 06:57 PM
Replies: 58
Views: 38,481
Posted By DRW
In Mitsu's test, the VG were placed 100mm ahead...

In Mitsu's test, the VG were placed 100mm ahead of where the airflow separated from the rear glass. Similarly, in the link to the glider modification, the zigzag tape on the wing was placed ahead of...
Forum: Aerodynamics 11-24-2007, 10:25 PM
Replies: 58
Views: 38,481
Posted By DRW
To summarise, it seems like turbulators help...

To summarise, it seems like turbulators help when there is unwanted airflow separation. A successfull turbulator is placed a certain distance in front of the point of separation.
Forum: Aerodynamics 11-11-2007, 07:38 PM
Replies: 58
Views: 38,481
Posted By DRW
Good stuff! I think I'm seeing a Karmann vortex...

Good stuff!
I think I'm seeing a Karmann vortex that's formed at the back of the car in the graphic that's labeled '(a)With VG' while the car '(b)without VG' doesn't show signs of a Karman vortex....
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