|
I think the idea is to not just fill in the wake but to control the attached flow at the edge of the car somewhat. See the Renault experiments with square-backed cars upthread. Also in F1 they're using exhaust "blown diffusers" to keep the flow attached at angles it would normally detach from. Those angles are going to be different at 200mph compared to 50mph though! My thinking is that a relatively small amount of air can be used to "direct" the attached flow inwards minimizing the wake, and filling it a little too. Renault were getting positive results from a small electrically powered system, a turbo is going to be a lot better than that at delivering air.
|