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Energies 2013, 6(12), 6335-6351; doi:10.3390/en6126335
Article

Slotted Blades Savonius Wind Turbine Analysis by CFD

1,* , 1, 2, 1 and 1
1 Faculty of Engineering and Architecture, Kore University of Enna, Cittadella Universitaria,94100 Enna, Italy 2 Faculty of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
* Author to whom correspondence should be addressed.
Received: 13 November 2013 / Revised: 27 November 2013 / Accepted: 28 November 2013 / Published: 4 December 2013
(This article belongs to the Special Issue Wind Turbines 2014)
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Abstract

In this paper a new bucket configuration for a Savonius wind generator is proposed. Numerical analyses are performed to estimate the performances of the proposed configuration by means of the commercial code COMSOL Multiphysics® with respect to Savonius wind turbine with overlap only. Parametric analyses are performed, for a fixed overlap ratio, by varying the slot position; the results show that for slot positioned near the blade root, the Savonius rotor improves performances at low tip speed ratio, evidencing a better starting torque. This circumstance is confirmed by static analyses performed on the slotted blades in order to investigate the starting characteristic of the proposed Savonius wind generator configuration.
Keywords: wind turbine; Savonius; CFD analysis; slotted blades wind turbine; Savonius; CFD analysis; slotted blades
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Alaimo, A.; Esposito, A.; Milazzo, A.; Orlando, C.; Trentacosti, F. Slotted Blades Savonius Wind Turbine Analysis by CFD. Energies 2013, 6, 6335-6351.

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