Reducing resistance to aerofoil or hydrofoil passing through medium e.g. air or water - uses array of teeth formed on leading and/or trailing edge of aerofoil or hydrofoil section

摘要

The teeth on the leading edge of an aero/hydrofoil section ensures a smooth flow of the air/water over the section. The teeth on the trailing edge prevent the formation of eddies or turbulence. The shape, length, width, spacing and alignment of the teeth, as well as the number of rows of teeth, will depend on the size and speed of the section through the air/water. USE - Teeth on leading and trailing edge are used on rotors for jet motors and ventilator fans, and on boats and aircraft to reduce fluid flow resistance.