What is the purpose of the slot on a wing?

Fixed-Wing Aircraft Numerical Investigation of Leading Edge Blowing and Optimization of the Slot Geometry for a Circulation Control Airfoil

Fixed slats, also called slots, are used on low-speed aircraft and are always extended The last type of slats is automatics slats; it's driven by springs

fixed slot leading edge At high angles of attack, slots allow higher pressure air to flow from the underside of the wing's leading edge into the air moving over the top

slot xo Fixed slats are also known as slots These types of slats are fixed at their position They cannot be moved automatically or pilot cannot control such types of