Vortex generator

1967 Model Cessna 182K in flight showing after-market vortex generators on the wing leading edge

The Symphony SA-160 was designed with two unusual vortex generators on its wing to ensure aileron effectiveness through the stall

A vortex generator (VG) is an aerodynamic device, consisting of a small vane usually attached to a lifting surface (or airfoil, such as an aircraft wing)^[1] or a rotor blade of a wind turbine.^[2] VGs may also be attached to some part of an aerodynamic vehicle such as an aircraft fuselage or a car. When the airfoil or the body is in motion relative to the air, the VG creates a vortex,^[1]^[3] which, by removing some part of the slow-moving boundary layer in contact with the airfoil surface, delays local flow separation and aerodynamic stalling, thereby improving the effectiveness of wings and control surfaces, such as flaps, elevators, ailerons, and rudders.^[3]

^ ^a ^b Peppler, I.L.: From The Ground Up, page 23. Aviation Publishers Co. Limited, Ottawa Ontario, Twenty Seventh Revised Edition, 1996. ISBN 0-9690054-9-0
^ Wind Turbine Vortex Generators, UpWind Solutions.
^ ^a ^b Micro AeroDynamics (2003). "How Micro VGs Work". Retrieved March 15, 2008.

[Peppler-1] Peppler, I.L.: From The Ground Up, page 23. Aviation Publishers Co. Limited, Ottawa Ontario, Twenty Seventh Revised Edition, 1996. ISBN 0-9690054-9-0

[WindTurbineVortexGenerators-2] Wind Turbine Vortex Generators, UpWind Solutions.

[MicroHow-3] Micro AeroDynamics (2003). "How Micro VGs Work". Retrieved March 15, 2008.

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