Aero-elastic behavior of a flexible blade for wind turbine applicationA 2D computational study.pdfVIP

Energy 35 (2010) 778–785 Contents lists available at ScienceDirect Energy journal homepage: www.else /locate/energy Aero-elastic behavior of a flexible blade for wind turbine application: A 2D computational study Eelco Hoogedoorn a, Gustaaf B. Jacobs a, Asfaw Beyene b, * a Department of Aerospace Engineering Engineering Mechanics, USA b Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA, USA a r t i c l e i n f o a b s t r a c t Article history: This paper presents a computational study into the static aeroelastic response of a 2D wind turbine airfoil Received 5 November 2008 under varying wind conditions. An efficient and accurate code that couples the X-Foil software for Received in revised form computation of airfoil aerodynamics and the MATLAB PDE toolbox for computation of the airfoil 11 August 2009 deformation is developed for the aero-elastic computations. The code is validated qualitatively against Accepted 26 August 2009 computational results in literature. The impact of a flexibility of the airfoil is studied for a range of design Available online 24 September 2009 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 o