Importance

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Abstract

A drag-based wind turbine device is disclosed. The device is an improved wind turbine comprised of two sets of stacked and coupled, drag-based vertical axis wind turbines, wherein drag from the first turbine helps propel the second turbine. Additionally, the surface of the first turbine is convex to ensure wind is always deflected toward the second turbine, wherein the wind is then received by the concave side of the second turbine. Further, the blades are arranged in a horizontal and sloping manner. In the convex position, each slope blade deflects incoming wind to the other set of turbines in a concave direction. Additionally, the gap between two turbines can be adjusted for different wind/current speeds, viscosities, compressibility, and densities for the best efficiency.

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First Claim