Mixing Time in Cylindrical Bath Agitated by Plunging Jet

Access this Article

Search this Article

Author(s)

    • ABE Koji
    • Graduate School of Engineering, Hokkaido University
    • IGUCHI Manabu
    • Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaidou Unibersity

Abstract

A plunging jet is a powerful tool for the agitation of a bath as well as the entrapment of fine powder into the bath. As a fundamental model study of the development of novel refining processes using a plunging jet, the mixing time in a cylindrical water bath agitated by the jet was measured with an electric conductivity meter. The measured values of the mixing time depended significantly on the aspect ratio of the bath. Two empirical equations of the mixing time were proposed for two aspect ratio regimes; regime 1 (aspect ratio≅0.31.0) and regime 2 (aspect ratio≅1.02.0). Uniform mixing was established in regime 1 just after the completion of plunging. The mixing time in regime 2 became much longer than that in regime 1. The relationship between the mixing time and the rate of dissipation of energy density was also discussed. In regime 1, a plunging jet had higher mixing ability than gas injection.

Journal

  • ISIJ International

    ISIJ International 42(6), 581-587, 2002-06-15

    The Iron and Steel Institute of Japan

References:  15

  • <no title>

    SZEKELY J.

    Fluid Flow Phenomena in Metals Processing, 1979

    Cited by (7)

  • <no title>

    100th and 101st Nishiyama Memorial Seminor, 1984

    Cited by (2)

  • <no title>

    SAHAI Y.

    Advances in Transport Processes in Metallurgical Systems, 1992

    Cited by (9)

  • <no title>

    SZEKELY J.

    Ladle Metallurgy, 1989

    Cited by (6)

  • <no title>

    ILEGBUSI O. J.

    Mathematical and Physical modeling of materials processing operations, 1999

    Cited by (9)

  • <no title>

    BIN A. K.

    Chem. Eng. Sci 48, 3585, 1993

    Cited by (3)

  • <no title>

    BONETTO F.

    Int. J Multiphase Flow 19, 281, 1993

    Cited by (2)

  • <no title>

    IGUCHI M.

    Int. J. Multiphase Flow 24, 523, 1998

    Cited by (4)

  • <no title>

    MARUKAWA K.

    ISIJ Int. 41, S36, 2001

    Cited by (9)

  • <no title>

    IGUCHI M.

    ISIJ Int. 33, 1037, 1993

    Cited by (23)

  • <no title>

    KRISHNA G. G.

    Metall. Trans. B 19B, 839, 1988

    Cited by (2)

  • <no title>

    LEITCH A. M.

    J. Fluid Mech. 205, 77, 1989

    Cited by (2)

  • <no title>

    IGUCHI M.

    Metall. Mater. Trans. B 29, 569, 1998

    Cited by (7)

  • <no title>

    SHIMIZU T.

    Tetsu-to-Hagane 87, 7, 2001

    Cited by (5)

  • <no title>

    NAKANISHI K.

    Ironmaking Steelmaking 3, 193, 1975

    Cited by (4)

Cited by:  3

Codes

Page Top