Swirl Motions in a Cylindrical Bath Induced by Gas Injection under Reduced Pressure on Surface

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著者

    • IGUCHI Manabu
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University
    • EGUCHI Yoshihumi
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University
    • KAWASAKI Akira
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University
    • KITAMURA Shin-ya
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University
    • NAITO Ken-ichiro
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University

抄録

Swirl motions occurring in a bottom blowing water bath of an aspect ratio between approximately 0.2 and 1.0 were observed by eye inspection and with a high-speed video camera. The aspect ratio is defined as a ratio of the bath depth to the bath diameter. Effects of reduced pressure on the period, amplitude and some related aspects of the swirl motions were investigated. Measured values of these quantities for gas injection under the reduced pressure on the bath surface agreed with their respective measured values for gas injection with the same volumetric gas flow rate under the atmospheric pressure on the bath surface. Empirical equations for these quantities were proposed.

収録刊行物

  • ISIJ international

    ISIJ international 39(8), 767-771, 1999-08-15

    The Iron and Steel Institute of Japan

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