キャビテーションポンプの研究開発 : 羽根入口位置とキャビテーション強さの関係

概要

論文の詳細を見る
For the useful application of cavitation, experiment was carried to make clear the effect of inlet position of a centrifugal pump impeller on cavitation intensity. The inlet pipe size of the tested centrifugal pump is 20mm and the specific speed is 100 (m.m^3/min.min^<-1>). The number of the impeller blade is 4 and the shape is two-dimensional. The intensity of cavitation was measured by the acceleration on the pump casing and the occurrence region of cavitation was observed by the painted method. The larger inlet radius is, the higher casing vibration caused by cavitation is. A guideline of the impeller design was confirmed by the series of experiments.