風車翼の初期計画資料
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概要
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Glauert gave a design formula and some performance of such an optimum-windmill, which can obtain the maximum power from the ideal fluid. However, the real wind is viscous. Therefore, the influence of viscosity should be introduced into the analysis. Now, aerodynamically the optimum-windmill's performance depends upon the speed ratio, Reynolds Number, blade section shape, and surface roughness. Among these factors, the author introduced the speed ratio and the section lift by drag ratio, which is the function of the last two factors and should be referred to the Reynolds Number, into the Energy-Momentum theory. Under the above treatment he obtained the quantitatively practical design data of the optimum-windmills, suitable for the real wind, as the function of the speed ratio, inducing the section L/D as the parameter.
- 一般社団法人日本機械学会の論文
- 1951-10-20