J0503-3-5 任意の曲率形状を有する風車用翼型の生成と流体力学的特性評価(風力発電(3))

概要

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In recent years, the efficient use of natural energy is needed all over the world. It is a very important assignment to optimize airfoils at each part of the wind turbine blade as seen from its aerodynamic aspects, and with regard to the optimization of the control methods. Wind turbines with a propeller-type rotor on a horizontal axis employ turbine blades, have a thickness ratio δ (the ratio of chord length C against maximum thickness T), which is small at the blade tip (thin blade), and is large at the blade root (thick blade). From the results, the previous paper has proved that by changing the angle of attack a, the thin blade caused stall once, the thick blade caused stall twice and the stall phenomenon was caused by the flow conditions around the airfoil influenced by the different shapes of each airfoil from the leading edge to the maximum thickness point.
社団法人日本機械学会の論文
2009-09-12