Visualization of Turbulent Gas-liquid Two-phase Flows in a Horizontal Channel
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- MURAI Yuichi
- 北海道大学工学研究院
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- TASAKA Yuji
- 北海道大学工学研究院
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- OISHI Yoshihiko
- 北海道大学工学研究院
Bibliographic Information
- Other Title
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- 水平チャネル内気液二相乱流の可視化
- スイヘイ チャネル ウチキエキ ニソウ ランリュウ ノ カシカ
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Abstract
A variety of gas-liquid two-phase flow patterns observed in a horizontal channel is introduced in the paper. The motivation of the experiment originates from drag reduction technique development for marine vessels in sea water, which requires physical mechanism toward practical utilization. The authors' group carried out high-speed air-water mixture visualization as well as low-speed silicone oil loop experiment so that what the figure of the gas-liquid interfaces imply when we discuss about the mechanism. The series of visualization showed multiple novel interpretation of the mechanism; spanwise clustering of bubbles takes place in laminar bubbly two-phase flow, streamwise striping of bubble distribution is formed in turbulent condition, and chained bubbles with large deformation appear at the intermediate conditions. The difference of the bubble clustering is understood to have a correlation to wall shear stress that has been reduced when clustering becomes strong.
Journal
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- Journal of the Visualization Society of Japan
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Journal of the Visualization Society of Japan 32 (126), 19-22, 2012
The Visualization Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204619412864
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- NII Article ID
- 10030770875
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- NII Book ID
- AN10374478
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- ISSN
- 1884037X
- 09164731
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- NDL BIB ID
- 023860410
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed