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Vortexis
Vortexis is a type of vertical axis wind turbine (VAWT) used to generate electricity from the energy carried in the wind.
==Abstract==
Developed between 2008 and 2010, and receiving patent approval in 2015, (See Fig.1) Vortexis is a vertical axis wind turbine formed from a concentric arrangement of fixed stator blades to provide fluid flow acceleration into an arrangement of rotatable blades secured to a generator for invoking electrical power generation. The stator blades are maintained in a fixed position by use of an upper and lower stator plate. The rotor blades include an upper and lower plate, the upper plate coupled to the upper stator plate, and the lower rotor plate coupled to the generator. The amount of stator and rotor blades may be scaled in number and size depending upon the type of generator to be driven and associated mechanical energy to be obtained. The stator blades are designed for air deflection in a direction for optimal rotor blade rotation by accelerating air flow into a pre-swirl before the flow contacts the rotor blades. Each stator blade is oriented at a sufficient stagger angle so that an angle of the relative velocity does not exceed the stall angle of said rotor blade.
The turbine consists of a concentric arrangement of fixed blades having an optimal geometric formation for deflecting wind forces for wind flow acceleration into a concentric arrangement of rotatable blades having an optimal geometric formation for rotating to invoke electrical power generation. In the preferred embodiment, the wind turbine has at least three stator blades and at least three rotor blades adapted for optimum wind deflection, which provides for a wind turbine having stator and rotor blades of a geometric formation that provide for greater efficiencies over a conventional vertical axis wind turbine. This design of wind turbine was patented by Dr. Gecheng Zha, an Chinese-American aeronautical engineer in 2015, and has been adapted for Special Operations use by the Department of Defense as "Black Swan."(See Fig. 3).〔(【引用サイトリンク】title=Special Operations Summit Little Creek - Wind Power: "Small and Micro Wind"…A Position of Power I )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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