Expansion of injected gas bubble and its effects on bath mixing under reduced pressure

Teruhisa Tatsuoka, Chizuna Kamata, Kimihisa Ito

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    The behavior of a single bubble was observed and the complete mixing time was measured under reduced pressure ( ∼ 1.33 × 102 Pa (1 Torr)) using a silicon oil model. The bubble expanded greatly and changed from oval to a spherical-cup shape. The complete mixing time tended to be constant independent of the stirring power of gas per unit bath volume in the low vessel pressure range ( < 6.66 × 102Pa), because most of the expansion energy was dissipated and the mixing occurred near the bath surface; this was confirmed by observation of the flow.

    Original languageEnglish
    Pages (from-to)557-561
    Number of pages5
    JournalISIJ International
    Volume37
    Issue number6
    Publication statusPublished - 1997

    Fingerprint

    Gases
    Silicon
    Pressure vessels
    Oils

    Keywords

    • Complete mixing time
    • Local stirring power
    • Optical fiber probe
    • Single bubble
    • Steelmaking
    • Vacuum refining

    ASJC Scopus subject areas

    • Metals and Alloys

    Cite this

    Expansion of injected gas bubble and its effects on bath mixing under reduced pressure. / Tatsuoka, Teruhisa; Kamata, Chizuna; Ito, Kimihisa.

    In: ISIJ International, Vol. 37, No. 6, 1997, p. 557-561.

    Research output: Contribution to journalArticle

    Tatsuoka, Teruhisa ; Kamata, Chizuna ; Ito, Kimihisa. / Expansion of injected gas bubble and its effects on bath mixing under reduced pressure. In: ISIJ International. 1997 ; Vol. 37, No. 6. pp. 557-561.
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