| 摘要 |
The invention relates to wind energy, in particular to wind energy devices converting wind energy into electrical, mechanical, hydraulic or other form of energy. The technical result consisting in enhancing the effectiveness of a WED by increasing the moment on the shaft of the rotor, is provided as a result of the fact that in the proposed method a rotor blade is made in the form of a wing with a thick aerodynamic profile and a vortex system for control of the boundary layer is arranged on the rear part of the blade opposite the side facing the wind, this system consisting of longitudinal cavities with central bodies forming annular channels, and suction withdrawal of air is carried out from each cavity and each central body through air vents into receivers, which connect air ducts to a low pressure receiver inside the blade, air from which due to centrifugal forces of a rotating blade and also because of the difference in pressure occurring at a blade shank and end of the blade because of the large sum speed of the air at the end of the rotating blade, is suction withdrawn to the end of the blade through an air duct, wherein plates limiting the air flow flowing off along the blade are mounted inside the cavity and on the outer surface of the blade with a certain spacing between them. The proposed method for enhancing the effectiveness of a rotor blade of a wind energy device is realized in one of the variants.
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