ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,945, issued on Oct. 21.
"Optimized end plates for vertical axis wind turbine" was invented by Hamid R. Rahai (Long Beach, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The performance of airfoils on wind turbines has been found to be improved by the presence of endplates mounted to the airfoil. Using steady numerical simulations, the shape of the endplates that improves the lift coefficients and lift-to-drag coefficients to the greatest degree is a thin plate that follows the chord of the airfoil with a thickness that is between an eighth and a quarter of the length of the airfoil. Rounding the edges of the endplates further enhance the perf...