Aerodynamic design of optimum wind turbines

A. M. de Paor

Applied Energy, 1982, vol. 12, issue 3, 228 pages

Abstract: Based on performance envelopes derived by Wilson et al.6 at Oregon State University, and on a new aerodynamic theory recently proposed by the author, a design procedure is presented and illustrated for one-, two- or three-bladed horizontal axis, constant chord wind turbines of optimum performance. Following specification of the number of blades, B, the lift coefficient, L, and the lift-to-drag ratio, L/D, at the design point, algorithms are developed for finding: (i) the tip-speed ratio, X, at which the optimum power coefficient is developed, (ii) the ratio of blade chord to radius and (iii) the manner in which each blade should be twisted along its axis. Programs are given for implementing the calculations iteratively on a programmable calculator.

Date: 1982
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