Yes, without them that raised front section of floor would actually create some lift, being a bell-mouthed contraction it creates a bit of high pressure. Bargeboards have a specific purpose which has been optimized with the flat floor, these have a simpler purpose for the tunnel underbody.Blackout wrote: ↑Mon Jul 27, 2020 12:40 pmAnd the front fences assembly! They are quite overlooked in the medias, but as far as I understand they'll play a big role by creating a big low pressure area around the center of the car and by sucking a big amount of air there.
Correct me if I'm wrong, but they might be more powerful than the bargeborads. We should call this assembly "the aspirator" as opposed to the diffuser and they can be considered as a new/fourth DF generator IMO.
How will the vortices work? Being in ground effect they stay pretty much in the same YZ location as they progress along the car, they help infer some low pressure on the suction surface; also might help keep flow attached in the diffuser, though it's not so aggressive a shape that separation may be an issue. IMO the vortex is less important than the low pressure from the shape of the vanes, teams might even try to reduce the vorticity.
I wouldn't say "big" outwash, though there is definitely outwash around the middle of the car, but I think less than current cars. I think they don't care about this so much because the rear end of the car is doing the job of "tidying" the wake.