FWandE wrote: ↑20 Feb 2022, 11:16No, but the floor doesn't have dimples either. It has a wave pattern. It's either a red herring or it is something that has a real beneficial effect in wind tunnel and/or simulation. If it is still on the car later in the season we can assume it is working. If it is changed or removed we can assume it is not.
Does anyone have new ideas about what it is doing? Is it just a way of generating vortices without breaking the rules? Or could it affect airflow in other ways?
That area is strongly out-washing, not only because it always has been even in previous regulations, also because of how the vanes shaped. So I'm going to assume air is flowing diagonally across, or outboard in that area on the underside.
You aslo notice that the waves start small
then gradually increase in size.
My deduction is that the wavey edge guides the air flowing of the top of the floor into little fingers. They will roll into a vortex, but that floor edge vortex will also happen without the wavy edge also, so I wont talk too much about the vortex.
So these fingers ir small jets of air, are higher velocity than if they were on flat sheet of air. The higher local velocity of these fingers if air makes it harder for them to turn under neath the floor.
While this is happening in between the fingers there are also slower moving bands of air that come from the high side of the wave. These slower bands of higher static pressure shoud roll up easier into the typical floor edge vortex.
So what I think is happening is that the wavy edge is a way to split air in two, one half to make a tighter but not too strong vortex, and the other half to pass further downstream for other use. A sort of splitter, or filter if you will.
Ther overall result should be less drag from the floor since you have a weaker but just "enough" floor edge vortex to energize the floow as needed and you preserve some of that air from the undercut to be pull back in to the coke or to manage rear tyre squirt.
Im not an aero guy so it's just a wild guess! Believe at your own peril!
.. hope its just as fast
