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Transient flow characterization in energy conversion of a side channel pump under different blade suction angles

Author

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  • Zhang, Fan
  • Appiah, Desmond
  • Zhang, Jinfeng
  • Yuan, Shouqi
  • Osman, Majeed Koranteng
  • Chen, Ke

Abstract

The flow in a side channel pump exhibits complex, three-dimensional and unsteady features. The present study investigates the transient flow interaction between the moving impeller region and the static side channel in a side channel pump which consists of 24 blades and a circular side channel. In this study, the transient flow features under different blade suction angle profiles have been investigated. The transient pressure distribution, velocity field, streamline plots, and mass flow exchange between the impeller and side channel are analyzed. Comparison shows that the side channel pump's flow mechanism is influenced by irregular flow characteristics and a number of vortex impulses at certain positions. Thus, zones of large vortices that cause low pump efficiency are demonstrated. The pressure fluctuation in the side channel pump is greatly influenced by the flow exchange between the impeller region and the side channel, and the pressure fluctuation frequency is related to the flow exchange frequency. This work helps understand the transient flow characteristics and serves as a guide for conducting further research in high-efficiency side channel pumps.

Suggested Citation

  • Zhang, Fan & Appiah, Desmond & Zhang, Jinfeng & Yuan, Shouqi & Osman, Majeed Koranteng & Chen, Ke, 2018. "Transient flow characterization in energy conversion of a side channel pump under different blade suction angles," Energy, Elsevier, vol. 161(C), pages 635-648.
    • Handle: RePEc:eee:energy:v:161:y:2018:i:c:p:635-648
    DOI: 10.1016/j.energy.2018.07.152
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    Citations

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    Cited by:

    1. Fan Zhang & Ke Chen & Lufeng Zhu & Desmond Appiah & Bo Hu & Shouqi Yuan, 2020. "Gas–Liquid Two-Phase Flow Investigation of Side Channel Pump: An Application of MUSIG Model," Mathematics, MDPI, vol. 8(4), pages 1-25, April.
    2. Fan Zhang & Ke Chen & Desmond Appiah & Bo Hu & Shouqi Yuan & Stephen Ntiri Asomani, 2019. "Numerical Delineation of 3D Unsteady Flow Fields in Side Channel Pumps for Engineering Processes," Energies, MDPI, vol. 12(7), pages 1-24, April.
    3. Wang, Zhiyuan & Qian, Zhongdong & Lu, Jie & Wu, Pengfei, 2019. "Effects of flow rate and rotational speed on pressure fluctuations in a double-suction centrifugal pump," Energy, Elsevier, vol. 170(C), pages 212-227.
    4. Wang, Wen-Quan & Yu, Zhi-Feng & Yan, Yan & Wei, Xin-Yu, 2024. "Numerical investigation on vortex characteristics in a low-head Francis turbine operating of adjustable-speed at part load conditions," Energy, Elsevier, vol. 302(C).
    5. Wang, Tao & Yu, He & Xiang, Ru & Chen, XiaoMing & Zhang, Xiang, 2023. "Performance and unsteady flow characteristic of forward-curved impeller with different blade inlet swept angles in a pump as turbine," Energy, Elsevier, vol. 282(C).
    6. Ji Pei & Fan Zhang & Desmond Appiah & Bo Hu & Shouqi Yuan & Ke Chen & Stephen Ntiri Asomani, 2019. "Performance Prediction Based on Effects of Wrapping Angle of a Side Channel Pump," Energies, MDPI, vol. 12(1), pages 1-20, January.
    7. Pei, Yingju & Liu, Qingyou & Wang, Chuan & Wang, Guorong, 2021. "Energy efficiency prediction model and energy characteristics of subsea disc pump based on velocity slip and similarity theory," Energy, Elsevier, vol. 229(C).
    8. Shi, Guangtai & Liu, Zongku & Xiao, Yexiang & Wang, Zhengwei & Luo, Yongyao & Luo, Kun, 2020. "Energy conversion characteristics of multiphase pump impeller analyzed based on blade load spectra," Renewable Energy, Elsevier, vol. 157(C), pages 9-23.

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