Aero-elastic behavior of a flexible blade for wind turbine application: A 2D computational study

Eelco Hoogedoorn, Gustaaf B. Jacobs and Asfaw Beyene

Energy, 2010, vol. 35, issue 2, 778-785

Abstract: This paper presents a computational study into the static aeroelastic response of a 2D wind turbine airfoil under varying wind conditions. An efficient and accurate code that couples the X-Foil software for computation of airfoil aerodynamics and the MATLAB PDE toolbox for computation of the airfoil deformation is developed for the aero-elastic computations. The code is validated qualitatively against computational results in literature. The impact of a flexibility of the airfoil is studied for a range of design parameters including the free stream velocity, pitch angle, airfoil thickness, and airfoil camber. Static aero-elastic effects have the potential to improve lift and the lift over drag ratio at off-design wind speed conditions. Flexibility delays stall to a large pitch angle, increasing the operating range of a flexible blade airfoil. With increased thickness the airfoil deformation decrease only linearly.

Keywords: Flexible blade; Wind turbine; Aeroelasticity; Part-load; Adaptive motion (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (16)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:35:y:2010:i:2:p:778-785

DOI: 10.1016/j.energy.2009.08.030

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