463
The Americans created a self-adhesive vortex generators
The American company Edge Aerodynmix finalized adhesive wind turbines designed to reduce or eliminate flow separation on aerodynamic surfaces of the aircraft. Until the end of April this year the company expects to receive a certificate of the United States Federal Aviation Administration for the installation of vortex generators for passenger aircraft of Boeing 737.
Thanks to such "stickers" somewhat improve the aerodynamics of aircraft, thereby reducing fuel consumption.
The company calls its "label" conformal vortex generators because, unlike traditional subjects such they hardly rise above the airfoil. Conformal vortex generators are strips of thermoplastic polyurethane, width 15 cm 2 and a thickness of only 0, 38 mm. They performed different lengths depending on the aircraft, which will be glued.
According to the recommendations Edge Aerodynamix, pasting vortex generators should be departing five millimeters from the trailing edge of the slat in the retracted position. Vortex generators should be glued airlines techniques; they will not be applied in the assembly of the aircraft. The leading edge of such "labels" has a wavy shape, while the rear edge is sawtooth. According to the American companies such vortex generators contribute to the laminar air flow on the surface of the wing.
vortex generators tests were carried out on the liner Boeing 737-500. Aircraft flew with a "label" of length 76 cm and 2 without them at a speed of 0, 78 Mach number (about 963 kilometers per hour). No vortex generators Measured fuel each engine liner was 1, 22 tons per hour. With the "stickers" fuel consumption is reduced to 1, 12 tons per hour. According to calculations, a Boeing 737 in the economy at a speed of Flight mode 0, 74 Mach number of additional savings of around four percent.
When buying a self-adhesive vortex generators airline will pay only for the first set. Subsequent replacement of the damaged areas will be carried out free of charge. When maintenance change "stickers" can be 38 sections long, 1 centimeter. At the conclusion of the contract for the supply of vortex generators will not be indicated exact savings, but the agreement will oblige airlines to pay Edge Aerodynamix 35 percent of the saved using the "labels" of fuel.
According to the company, has 16 air carriers are interested in its development, but none of them has not yet signed a firm agreement for the supply.
Thanks to such "stickers" somewhat improve the aerodynamics of aircraft, thereby reducing fuel consumption.
The company calls its "label" conformal vortex generators because, unlike traditional subjects such they hardly rise above the airfoil. Conformal vortex generators are strips of thermoplastic polyurethane, width 15 cm 2 and a thickness of only 0, 38 mm. They performed different lengths depending on the aircraft, which will be glued.
According to the recommendations Edge Aerodynamix, pasting vortex generators should be departing five millimeters from the trailing edge of the slat in the retracted position. Vortex generators should be glued airlines techniques; they will not be applied in the assembly of the aircraft. The leading edge of such "labels" has a wavy shape, while the rear edge is sawtooth. According to the American companies such vortex generators contribute to the laminar air flow on the surface of the wing.
vortex generators tests were carried out on the liner Boeing 737-500. Aircraft flew with a "label" of length 76 cm and 2 without them at a speed of 0, 78 Mach number (about 963 kilometers per hour). No vortex generators Measured fuel each engine liner was 1, 22 tons per hour. With the "stickers" fuel consumption is reduced to 1, 12 tons per hour. According to calculations, a Boeing 737 in the economy at a speed of Flight mode 0, 74 Mach number of additional savings of around four percent.
When buying a self-adhesive vortex generators airline will pay only for the first set. Subsequent replacement of the damaged areas will be carried out free of charge. When maintenance change "stickers" can be 38 sections long, 1 centimeter. At the conclusion of the contract for the supply of vortex generators will not be indicated exact savings, but the agreement will oblige airlines to pay Edge Aerodynamix 35 percent of the saved using the "labels" of fuel.
According to the company, has 16 air carriers are interested in its development, but none of them has not yet signed a firm agreement for the supply.
