Swirl motions in a cylindrical bath induced by gas injection under reduced pressure on surface

Manabu Iguchi, Yoshihumi Eguchi, Akira Kawasaki, Shin Ya Kitamura, Ken Ichiro Naito

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)767-771
Number of pages5
JournalIsij International
Volume39
Issue number8
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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