Fixed Wake Theory for Vertical Axis Wind Turbines

[+] Author and Article Information
R. E. Wilson, S. N. Walker

Department of Mechanical Engineering, Oregon State University, Corvallis, Oreg. 97331

J. Fluids Eng 105(4), 389-393 (Dec 01, 1983) (5 pages) doi:10.1115/1.3241016 History: Received November 03, 1982; Online October 26, 2009


A theory for vertical axis wind turbines has been developed using a fixed wake approach. The theory combines some of the best features of vortex and streamtube approaches. This approach accounts for flow differences between fore-and-aft-blade positions that are predicted by vortex methods while retaining the low computation costs associated with streamtube theories. The theory is applied to high tip speed ratio operation of a Darrieus Rotor where the use of linear aerodynamics results in explicit calculation of the induced velocities. Comparison to test results shows good agreement.

Copyright © 1983 by ASME
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