By Colin Wood
Oct 22, 2020
You may have seen vortex generators before (you know, that row of uprights fins attached to the roof of cars like the Mitsubishi Evo), but you may not know what they do—besides improving the aerodynamic performance of a car in some way.
Here is a video that explains what exactly vortex generators are, and even how specifically they improve a car’s aerodynamics.
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10/22/20 3:57 p.m.
That is a pretty good primer on the functions of vortex generators. The mention of the Mistu Evo in the original post, does bear a little more explanation though. The VG's fitted to that car were used to influence the flow over the rear wing (3-4 feet away), so the vortex created and its other effects (mixing high energy and low energy flow) does persist for a significant time/distance behind the VG.
The final shots are at one of the tunnel here in the Charlotte area that is open to customer use. They do a lot of salt flats cars and bicycles, and the US bob sled teams test there too. Those are fun tests to attend.
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