beelsebob wrote:n smikle wrote:They create vortices. And judging by their position these votices help fill in the rear wheel wake or maybe prevent interaction from the endplate vortex (which is very large) from interacting negatively with the diffuser wake.
I would bet actually that at least the top ones are creating a vortex rotating in the opposite direction to the one off the rear wing tip to try to destroy the wing tip vortex and reduce drag.
The alignment of those fins align perfectly(in length) to the vanes at the bottom of the end plate.
I don't think their function is necesarily to create vortices(as the top, and bottom row of fins are in different area's) as their goal, but they rather manage the pressure difference.
Every team that has them has their top fin(s) cambered up. So my guess here is that they direct the flow to be parallel to the flow inside of the end plate.