Quote:
Originally Posted by Cd
Is it possible to add aerodynamic fences to direct the airflow around the side of the cars A pillar ?
Will the airflow just trip over the fence and result in more drag ?
I ask because i noticed the sides around my windshield have a raised 1/4" channel that i would have thought would snag the sideways traveling air and direct it upwards.
However, when i did my tuft test i found that the air just tripped over the obstruction and continued onward, resulting in a large A pillar vortex.
Below is an image of wing fences used on a MIG fighter jets wings to direct airflow 
Wing fence - Wikipedia, the free encyclopedia |
You might,but you're splitting hairs.
Ferrari spent hundreds of hours in the wind tunnel refining the C-pillar wiglets on their 599XX car.That's at $2,000 /hour in nothing less than a full-scale tunnel.These could not be evaluated as a model.
If you do anything wrong,the interference drag will offset any gains made.
I really believe that this sort of thing is outside the realm of what we as amateurs could do.