Device and method for suppressing wingtip vortex

Abstract

The invention discloses a device and a method for suppressing a wingtip vortex and relates to the device and method for suppressing the wingtip vortex of an airplane by using plasma technology. The device for suppressing the wingtip vortex is provided with a substrate, wherein the upper surface of the substrate is covered by at least one upper surface electrode; the lower surface of the substrateis covered by at least one lower surface electrode; the upper surface electrode and the lower surface electrode are arranged in an interleaving way; when the upper surface and the lower surface of the substrate are covered by at least two pairs of upper surface electrodes and lower surface electrodes, each pair of electrodes is arranged in the same interleaving way; the upper surface electrodes are electrically connected, and the lower surface electrodes are electrically connected; the surface of the lower surface electrode is covered by a dielectric material layer; and the upper surface electrodes and the lower surface electrodes are electrically connected with an alternate current power supply respectively. When the device is used, the device for suppressing the wingtip vortex is arranged on the upper surface and the lower surface of a wingtip, and high alternate-current voltage is loaded on the upper surface electrode and the lower surface electrode so as to make gas discharge. Thedevice for suppressing the wingtip vortex has the advantages of simple structure, low cost, no need of mechanical or pneumatic device with additional weight, no change in pneumatic appearance of the conventional aerofoil plane, flexible control and convenient use.

Description

technical field [0001] The invention relates to a device and method for suppressing aircraft wing tip vortex by using plasma technology. Background technique [0002] When an aircraft is flying, there will be a wake behind it. When the aircraft behind enters the wake area of ​​the aircraft in front, there will be phenomena such as fuselage shaking, sinking, flight status changes, engine shutdown, and even aircraft flipping. For small aircraft, this situation is even more serious. When a small aircraft trails a large aircraft to take off or land, a flight accident will occur if it is not handled properly. Among them, the wake turbulence developed downstream from the wingtip vortex is the most influential factor. [0003] The wake of the aircraft is a pair of closed vortices generated on the wing tips, developing downstream and opposite in direction. It not only affects the flight safety of the trailing aircraft, but also is the main source of the induced drag of the aircraft ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to take measures such as installing winglets, end plates or wingtip sails on the aircraft in order to suppress the wake vortex for the existing aircraft, resulting in increased structural weight, fuel consumption and operating costs of the aircraft and other problems, a wingtip vortex suppression device is provided, which can use plasma to suppress the wingtip vortex without changing the aerodynamic shape of the wing tip

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