Experimental Study of Air Entrainment from Free Surface in Suction Sump Based on Self-Organised Criticality

DOI

Bibliographic Information

Other Title
  • 自己組織化臨界に基づく吸込水槽内における自由表面からの空気吸込の実験的研究

Abstract

<p>Our aim is to understand the air entrainment into a suction pipe inside a suction sump in the vertical-wet-pit-pump configuration. This suction-sump flow accompanying the air entrainment often appears in various industrial and environmental problems, however is usually complicated owing to both its unsteadiness with poor periodicity and its fully-three-dimensionality. In the present study, from a viewpoint of the self-organised criticality (SOC), we conduct long-term measurements with a fine time resolution of 0.1 s using a CdS optical cell. As a result, the air entrainment is classified into two; one with short lifetime and the other with long lifetime. It is suggested that the latter is possibly related with SOC.</p>

Journal

  • Turbomachinery

    Turbomachinery 50 (5), 303-314, 2022

    Turbomachinery Society of Japan

Keywords

Details 詳細情報について

  • CRID
    1390294330148841472
  • DOI
    10.11458/tsj.50.5_303
  • ISSN
    18802338
    03858839
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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