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強い乱流中の単一静止気泡からの物質移動

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Title: 強い乱流中の単一静止気泡からの物質移動
Other Titles: Mass Transfer from a Single Stationary Bubble in Highly Turbulent Flow
Authors: 熊谷, 剛彦1 Browse this author →KAKEN DB
井口, 学2 Browse this author
Authors(alt): Kumagai, Takehiko1
Iguchi, Manabu2
Keywords: steelmaking
gas injection
mass transfer
bubble
Sherwood number
turbulence intensity
Issue Date: 1-Nov-2002
Publisher: 日本鉄鋼協会
Journal Title: 鉄と鋼
Volume: 88
Issue: 11
Start Page: 715
End Page: 722
Publisher DOI: 10.2355/tetsutohagane1955.88.11_715
Abstract: A single CO2 bubble was held in a downward highly turbulent flow field realized in a tapered pipe. The dissolution process of the bubble was recorded with a CCD camera and the images were processed on a personal computer to determine the mass transfer coefficient for the bubble. An empirical equation was proposed for the mass transfer coefficient by referring to the previously obtained experimental findings. The equation is expressed as a function of the size of the bubble and the turbulence intensity in addition to the well-known Schmidt number and Reynolds number. The measured values of the mass transfer coefficient were approximated by the equation within a scatter of ±60%. Such estimation accuracy is acceptable in this kind of measurement.
Rights: 著作権は日本鉄鋼協会にある
Type: article
URI: http://hdl.handle.net/2115/75018
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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