Numerical and experimental investigations on the cavitation characteristics of a high-speed centrifugal pump with a splitter-blade inducer

被引:69
作者
Guo, XiaoMei [1 ]
Zhu, Linhang [2 ]
Zhu, ZuChao [3 ]
Cui, BaoLing [3 ]
Li, Yi [3 ]
机构
[1] Zhejiang Univ Water Resources & Elect Power, Hangzhou 310018, Peoples R China
[2] Zhejiang Univ, Chu Kochen Honor Coll 1201, Hangzhou 310018, Peoples R China
[3] Zhejiang Sci Tech Univ, Zhejiang Prov Key Lab Fluid Transmiss Technol, Hangzhou 310018, Peoples R China
基金
中国国家自然科学基金;
关键词
Centrifugal pump; External characteristics experiments; Rotating cavitation; Splitter-blade inducer; Visualization experiments; FLOW; PERFORMANCE; MODEL;
D O I
10.1007/s12206-014-1232-x
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A high-speed centrifugal pump with a splitter-blade inducer is investigated in this work. The flow with rotating cavitation is numerically simulated, external characteristics are subjected to experimental tests, and the internal flow is visualized. These procedures are conducted to 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 eta-Q curves agree with the experimental results of external characteristics. The calculated vapor volume fraction also agrees with the experimental results obtained from the visualization system. The mechanism of bubble evolution and the anti-cavitation performance of the high-speed centrifugal pump with a splitter-blade inducer are clearly elucidated.
引用
收藏
页码:259 / 267
页数:9
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