Optimal spanwise chord and thickness distribution for a Troposkien Darrieus wind turbine

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• 作者：Gabriele Bedon ; Marco Raciti Castelli ; Ernesto Benini
• 关键词：Vertical-axis wind turbine ; Blade element-momentum theory ; Extended airfoil database ; Evolutionary algorithm ; Numerical optimization ; WOMBAT
• 刊名：Journal of Wind Engineering and Industrial Aerodynamics
• 出版年：February, 2014
• 年：2014
• 卷：125
• 期：Complete
• 页码：13-21
• 全文大小：2446 K

文摘

An innovative concept of Troposkien wind turbine blade, characterized by a variable chord and thickness distributions along the blade span, is here presented. The proposed optimal blade configuration is determined through the use of an in-house design code, the so-called WOMBAT algorithm, obtained by combining both an advanced optimization method and a Blade Element-Momentum (BE-M) performance prediction code. The resulting geometry, slightly corrected in order to be easily realizable, shows a consistent increase in the aerodynamic performance with respect to the considered baseline architecture.