I am thinking for couple of months now to a possible drag reduction application of this principle:
Chevron (aeronautics) - Wikipedia, the free encyclopedia
I imagine that this system that permit a gradual mixing of different layers with different velocity might work to reduce the turbulence of the side mirrors. I wonder if someone tried or heard something.
This time there is no jet on the inside of the tooth-sawed perimeter but outside, the speed inside of this perimeter being zero...
Moving forward with this idea, similar with the utilization of "air tabs" I imagine utilization of such pattern always when the smooth surface has to be interrupted. Instead of make a clean smooth line (like the wheel passage) I imagine using a pattern like this. The intention is to not increase locally the body section.
