Wind turbine blades with dimples

Abstract

Wind turbine blades (2) which are characterised from being equipped with dimples (3) of hemispherical or polygonal shape as many as possible of them and as much as closer one another arranged in rows and alternately between them alongside blade's whole surface. Applying this dimple arrangement technique on blade's surface, a drastic management of specific aerodynamic phenomena contributing to the most possible wind laminar flow and steady blade rotation maximizing quality, reliability, economically and noiseless wind turbine operation which because of diffusion at a significant degree of the two side pressure difference, a speedier rotation is succeeded (more rounds per minute) finally maximizing electric energy production.

Description

technical field

[0001] The present invention relates to a technique applied to horizontal axis wind turbine blades arranged on a rotor on a wind turbine tower. Background technique

[0002] Wind turbines with blades of this type are known, which are made of known materials such as light plastic reinforced with glass, aluminium, thin wooden layers, and the like. The back of the blade is more curved than the front. In addition to length, which has a critical impact on the performance of a wind turbine, other factors such as width, thickness, and weight also have a role in maximizing the rotation that is characterized by a balance between aerodynamic design demands and durability. influences.

[0003] Wind turbine blades are designed and manufactured in a specific way and are arranged on the rotor to maximize the energy of the wind passing through them that turns the blades. Through the rotation of the blades on the shaft, the kinetic energy (rotational energy) is converted ...

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