水車の導羽根に関する理論

概要

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The flow through the guide vanes is studied theoretically on the assumption of its being potential flow through a circular lattice composed of hydrofoils. By this theory the characteristics of guide vanes of a given water turbine can be analytically clarified, and inversely the suitable form of guide vanes can be obtained when the quantity of flow and other elements of driven condition are given. The method of analysis is made by conformal translation and the circular lattice is converted to the straight one, on which the theoretical analysis has been fully studied by the staff of our institute and is able to be utilized for the present analysis on the circular lattice. As numerical examples, the pressure distribution calculated by our method about the two kinds of given guide vanes has been proved to have a satisfactory agreement with the result experimentally obtained by one of the present writers (F. Numachi).
一般社団法人日本機械学会の論文
1951-10-20