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An Investigation of the Aerodynamic Response of a Wind Turbine Blade to Tower Shadow

[+] Author Affiliations
Xabier Munduate, Frank N. Coton, Roderick A. McD. Galbraith

University of Glasgow, Glasgow, UK

Paper No. FEDSM2003-45364, pp. 2585-2592; 8 pages
doi:10.1115/FEDSM2003-45364
From:
  • ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
  • Volume 1: Fora, Parts A, B, C, and D
  • Honolulu, Hawaii, USA, July 6–10, 2003
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3696-7 | eISBN: 0-7918-3673-8
  • Copyright © 2003 by ASME

abstract

This paper presents results from a wind tunnel based examination of the response of a wind turbine blade to tower shadow. In the experiment, one of the blades of a two-bladed, downwind turbine was instrumented with miniature pressure transducers to allow recording of the blade surface pressure response through tower shadow. The surface pressures were then integrated to provide the normal force coefficient responses presented in this paper. It is shown that it is possible to reproduce the measured responses using an indicially formulated unsteady aerodynamic model applied to a cosine wake velocity deficit. It is also shown that agreement between the model and the measured data can be improved by careful consideration of the velocity deficit geometry.

Copyright © 2003 by ASME

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