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Effect of Tip Clearance on the Cavitation Flow in a Shunt Blade Inducer

Author

Listed:
  • Xiaomei Guo

    (School of Mechanical and Automotive Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China)

  • Chongyang Jiang

    (School of Mechanical and Automotive Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
    School of Mechanical and Engineering, Ningxia University, Yinchuan 750021, China)

  • Heng Qian

    (School of Mechanical and Automotive Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China)

  • Zuchao Zhu

    (Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China)

  • Changquan Zhou

    (School of Mechanical and Automotive Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China)

Abstract

In order to study the effect of tip clearance on the internal cavitation stability of a shunt blade inducer, an external characteristics experiment of a centrifugal pump with a shunt blade inducer was carried out. Based on the turbulence model and mixture model, the cavitating flow in a centrifugal pump with the inducer was numerically simulated. The influence of tip clearance on the cavitating flow in a shunt inducer was studied and analyzed. Through the research, it was found that tip clearance has a certain influence on the critical cavitation coefficient. The existence of the tip clearance caused a significant leakage vortex near the inducer’s inlet and a strong transient effect was shown. The location and degree of cavitation caused by the tip leakage are clarified in this paper. Tip clearance has a great impact on the pressure distribution on a shunt blade inducer. The influence law of tip clearance on an inducer’s blade load distribution was clarified. The results showed that tip clearance has a significant effect on the cavitation of a shunt blade inducer under low flow rate conditions.

Suggested Citation

  • Xiaomei Guo & Chongyang Jiang & Heng Qian & Zuchao Zhu & Changquan Zhou, 2022. "Effect of Tip Clearance on the Cavitation Flow in a Shunt Blade Inducer," Energies, MDPI, vol. 15(17), pages 1-13, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6330-:d:901972
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