New Airfoils for Small Horizontal Axis Wind Turbines

[+] Author and Article Information
P. Giguère, M. S. Selig

Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, 306 Talbot Laboratory, 104 S. Wright Street, Urbana, IL 61801-2935

J. Sol. Energy Eng 120(2), 108-114 (May 01, 1998) (7 pages) doi:10.1115/1.2888052 History: Received July 01, 1997; Revised December 01, 1997; Online February 14, 2008


In a continuing effort to enhance the performance of small wind energy systems, one root airfoil and three primary airfoils were specifically designed for small horizontal axis wind turbines. These airfoils are intended primarily for 1–5 kW variable-speed wind turbines for both conventional (tapered/twisted) or pultruded blades. The four airfoils were wind-tunnel tested at Reynolds numbers between 100,000 and 500,000. Tests with simulated leading-edge roughness were also conducted. The results indicate that small variable-speed wind turbines should benefit from the use of the new airfoils which provide enhanced lift-to-drag ratio performance as compared with previously existing airfoils.

Copyright © 1998 by The American Society of Mechanical Engineers
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