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XiaoMei Guo,Linhang Zhu,ZuChao Zhu,BaoLing Cui,Yi Li 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.1
A high-speed centrifugal pump with a splitter-blade inducer is investigated in this work. The flow with rotating cavitation is numericallysimulated, external characteristics are subjected to experimental tests, and the internal flow is visualized. These procedures are conductedto obtain the pressure, velocity, and vapor volume fraction distribution in the inducer and the impeller of the centrifugal pump. Bubble occurrence, development, and collapse are also observed. The predicted H-Q and η-Q curves agree with the experimental resultsof external characteristics. The calculated vapor volume fraction also agrees with the experimental results obtained from the visualizationsystem. The mechanism of bubble evolution and the anti-cavitation performance of the high-speed centrifugal pump with a splitter-bladeinducer are clearly elucidated.