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Self-Sustained Oscillation of Gas-Liquid Flow in a Centrifugal Pump with Semi-Open Impeller

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Hydraulic Machinery and Cavitation

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Abstract

When a centrifugal pump is operated at very low discharge with low suction head, the air dissolving in water merges to become bubble and stays inside an impeller channel. The staying bubbles accumulate to form a large bubble zone and decrease pumping head. This phenomena is called “air locking”, and often arises when air-rich water is used in a pumping system, such as a water supply system of a building.

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References

  1. Yamamoto, K., Instability in a Cavitating Centrifugal Pump, JSME International Jr, Ser. 2, Vol. 34, No. 1 (1991), pp. 9–17.

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  4. Ichiki I., Airtocking Phenomena at Partial Load Operation in Centrifugal Pump, Ebara Research Report (in Japanese), Vol.151(1991–4), p. 24.

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Author information

Authors and Affiliations

  1. Yokohama National University, 156, Tokiwadai, Hodogaya-ku, Yokohama, 240, Japan

    J. Kurokawa, J. Matsui, H. Takada & T. Hirayama

Authors
  1. J. Kurokawa
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  2. J. Matsui
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  3. H. Takada
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  4. T. Hirayama
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Editor information

Editors and Affiliations

  1. Polytechnic University of Valencia, Spain

    E. Cabrera , V. Espert  & F. Martínez ,  & 

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© 1996 Springer Science+Business Media Dordrecht

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Kurokawa, J., Matsui, J., Takada, H., Hirayama, T. (1996). Self-Sustained Oscillation of Gas-Liquid Flow in a Centrifugal Pump with Semi-Open Impeller. In: Cabrera, E., Espert, V., Martínez, F. (eds) Hydraulic Machinery and Cavitation. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9385-9_39

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  • DOI: https://doi.org/10.1007/978-94-010-9385-9_39

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-9387-3

  • Online ISBN: 978-94-010-9385-9

  • eBook Packages: Springer Book Archive

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