Investigations of Passive Flow Control Devices for Vertical Axis Wind Turbines |
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| Authors: | Florin Frunzulică Alexandru Dumitrache Horia Dumitrescu |
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| Institution: | 1. “POLITEHNICA” University of Bucharest, Faculty of Aerospace Engineering, Bucharest;2. Institute of Mathematical Statistics and Applied Mathematics, Calea 13 Septembrie no. 13, 050711 Bucharest |
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| Abstract: | The purpose of these investigations is to study the possibilities to improve performances of a typical vertical axis wind turbines (VAWT), of Darrieus-type, using passive devices (mounted “on” or “inside” the blades of VAWT) to control dynamic flow separation (dynamic stall phenomenon). The passive devices considered for investigations are the Gurney flap, the slot or thin channel, and the turbulence promoters. Studies are performed numerically using computational fluid dynamics and where it is possible the results are compared with existent experimental or numerical data. (© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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