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  • VG is defined as an aerodynamics device, consisting of a small vane usually attached to a lifting surface (horizontal and leading edge of the wing) When the airfoil or the body is in motion relative to the air.
Function :
  • like air flows over an aircraft, it sticks to the surface to the wing and produces lift. The separation of airflow from a wing’s upper surface when the critical angle of attack is exceeded will cause the wing to stall.
  • Vortex generators create their own vortices. These swirls of air energize the layer of air immediately above the wing’s surface and cause the air to remain attached to the airfoil longer, as the angle of attack increases.
  • when there are  multiengine aircraft, vortex generators improve controllability at Slow airspeeds and reduce stall speeds, permitting slower approaches.
  • The slower stall speed can yield a higher takeoff weight, thus improving the useful load. Similarly, VGs on single-engine aircraft lower stall speed and improve slow-speed handling.
  • improving the effectiveness of wings and control surfaces, such as flapselevatorsailerons, and rudders.

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