Systems and methods for destabilizing an airfoil vortex

a device and a method for a wake-behind-a-sailing-ship slipstream controlled are indicated. A device according to one embodiment is turned to an airplane system containing エーロ foil (14) which has a flow side where the 1st and the 2nd counter, and a tip part. The system can further contain a whirlpool dispersion device (2230) held by エーロ foil, and a whirlpool dispersion device contains a fluid flow nozzle (1590), a valve device (2231), and a control device (2233). It can combine with a source (2232) of pressurized fluid, and the fluid flow nozzle can contain an orifice positioned so that a flow of fluid might be oriented outside from a tip part. It is combined so that a fluid free passage may be carried out with a fluid flow nozzle, and the valve device can direct operation of a valve device. Therefore, after a whirlpool is generated, the whirlpool dispersion device can operate so that a rate to which a whirlpool (for example, whirlpool of a wings tip part) disappears may be accelerated. [Chosen drawing] Drawing 22