Red Bull's renowned design genius has decided to fit his 2020 car with what engineers in Formula 1 call a 'cape'. The y250 vortex causes air to flow over the front wing and spiral toward the chassisWhy is the y250 vortex so important? If the y250 vortex is too strong, it can pull the cape/J vane vortex out, away from the bargeboards. The J vane inherently has lots of vertical surfaces by virtue of the way it is attached to the nose. This helps to prevent the y250 vortex from being blown one way or another, keeping it in the same spot.

Source: BBC July 02, 2020 08:46 UTC