Quote:
Originally Posted by AeroModder
When I was using the Vortekz brand delta VGs as instructed on the package, they multiplied the intensity of the counter-rotating vorticies that swirl over the trunk of my sedan, most likely increasing drag. I'm thinking about trying them again in the opposite direction to cancel out the vorticies instead of intensifying them, and seeing how that changes things.
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The vorticity is a function of the pressure differential between the top and sides of the car,which is a function of the velocity gradient at the two locations.
I don't see how VGs could affect this.