Bubble Behavior in a Horizontal Narrow Divergent Passage (One-Dimensional Approximate Analysis)

Material type: 文書・図像類

Author: OHTA, Junichiほか

Publisher: John Wiley & Sons

Publication date: 1999

Material Format: Digital

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Note (General)：: This paper investigates the behavior of a bubble which bridges the gap in a cross section of a horizontal narrow divergent passage under Earth's gravi...

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Material Type: 文書・図像類
Title: Bubble Behavior in a Horizontal Narrow Divergent Passage (One-Dimensional Approximate Analysis)
Author/Editor: OHTA, Junichi
YAMAMOTO, Fujio
KOKETSU, Mitsuyuki
Author Heading: OHTA, Junichi
YAMAMOTO, Fujio
KOKETSU, Mitsuyuki
Publication, Distribution, etc.: John Wiley & Sons
Publication Date: 1999
Publication Date (W3CDTF): 1999
Periodical title: Heat Transfer. Asian Research
No. or year of volume/issue: 28 2
Volume: 28
Issue: 2
Pages: 102-114
Text Language Code: eng
Subject Heading: Bubble
surface tension
microgravity
meniscus
Hele-Shaw cell
separation
narrow space
Target Audience: 一般
Note (General): This paper investigates the behavior of a bubble which bridges the gap in a cross section of a horizontal narrow divergent passage under Earth's gravity conditions (1 G) analytically. In a narrow passage, inertia forces are known to be small compared with viscous forces. Also, gravity force is not dominant for bubble behavior in a horizontal narrow passage. In this sense, the bubble behavior in the passage is similar to that under microgravity conditions. It is important to understand the bubble behavior in relation to separating gas from a gas-liquid two-phase flow and controlling a gas-liquid interface under microgravity conditions. A one-dimensional momentum equation for the bubble behavior is derived. The equation is arranged as an ordinary differential equation with respect to the upstream interfacial location and is solved. Analytical results are compared with experimental ones. As a result, the effects of gap size, bubble projected area, and divergent angle on bubble behavior are explained qualitatively.
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ