前縁キャビテーションを伴う遠心羽根車の内部および出口流れ解析 : 羽根数および羽根角の影響

概要

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A theoretical analysis of passage and exit flow of a two dimensional logarithmic impeller with leading edge cavitation by using the singularity method is performed. In the wide parametric calculation, the flow features of impeller passage such as the cavity characteristics and the distributions of the relative velocity, and the static pressure are clarified with the flow rate, the blade number and the blade angle. And in the case of both back and face cavitation, the distributions of the static pressure, relative flow angle and the slop velocity at the impeller exit are also clarified with the blade number and the blade angle. And further, the changes of the slip factor and the impeller efficiency by the cavitation are shown to be determined from the simple formula. Finally, a comparison of the present calculated results with the experimental data and former calculated results is made.
一般社団法人日本機械学会の論文
1988-07-25