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Title: 鉄鋼2次精錬を想定した減圧容器内における気泡膨張挙動調査
Other Titles: Observation of Single Rising Bubble in Reduced Pressure Vessel Simulating Steel Secondary Refining
Authors: 熊谷, 剛彦1 Browse this author →KAKEN DB
Authors(alt): Kumagai, Takehiko1
Keywords: Vacuum refining
Expansion of bubble
Single rising bubble
Cold model
Issue Date: 15-Dec-2016
Publisher: 日本混相流学会
Journal Title: 混相流
Volume: 30
Issue: 4
Start Page: 367
End Page: 374
Publisher DOI: 10.3811/jjmf.30.367
Abstract: The expansion and shape change behaviors of a single rising bubble in a reduced pressure vessel were observed. The main results obtained are as follows: 1) The aspect ratio, h/w, of a single rising bubble under reduced pressure is almost the same as that under atmospheric pressure. However, the width of the rising bubble expanded to 1.4 times, which is larger than the calculated expansion ratio. This may be explained by the change of the bubble shape while rising. 2) The observed single bubble shapes were ellipsoidal, spherical-cap, and breakup of spherical-cap. The upward velocity of the bubble increases with the initial volume of the bubble. The upward velocity also increases as the bubble rises.
Rights: 著者権は日本混相流学会に帰属する
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 熊谷 剛彦

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