Seems to me that in the mid 2000's a variation on this design was found on almost F1 cars FW's.The popularity of this design has intrigued me. Ive also seen it on the front wing of sports racers.
The uneducated ideas ive come up with are that for some reason this shape reduces induced drag,creates a usable vortex,or is part of the endplates thin airfoil.
If someone could help explain the theory of this design to me Id really appreciate it.
Why is this profile of the end plate used only at the front. In the rear it seems that slots are used as seen in the pic below.
Of the 2, slots and cut, which is more effective?