Aerodynamic Design of ‘Box Blade’ and ‘Non-planar’ Wind Turbines

Luigi Molea (), Emanuele Vitantonio () and Aldo Frediani ()
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Luigi Molea: University of Pisa
Emanuele Vitantonio: University of Pisa
Aldo Frediani: University of Pisa

A chapter in Variational Analysis and Aerospace Engineering, 2016, pp 333-374 from Springer

Abstract: Abstract In this paper the aerodynamic efficiency of wind turbines with horizontal axis is discussed and the so-called box blade concept, inspired by the Prandtl’s ‘Best Wing System’ is analysed; this wind turbine configuration is proved to be efficient than a conventional blade. Moreover, other non-planar blades, such as the winglet and C extension are analysed via vortex theory with the numerical method of Ribner and Foster for the optimum circulation and the recent model of Okulov and Sørensen for the performance evaluation; a generalization of the above mentioned models is also presented in this work. Finally, the box blades are verified by means of a commercial CFD software.

Keywords: Wind Turbine; Rotor Plane; Vortex Filament; Screw Surface; Lift Line (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:spr:spochp:978-3-319-45680-5_13

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DOI: 10.1007/978-3-319-45680-5_13

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