Film Thickness in Gas-Liquid Two-Phase Flow : 1st Report, Effect of a ring type obstacle inserted into tube
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概要
- 論文の詳細を見る
Effects of a flow obstacle are examined on the film thickness in gas-liquid two-phase upward flow belonging to slug, froth and annular flow regimes. In this experiment, a ring type obstacle is employed as the obstacle, and time varying holdup is measured by means of the constant electric current method at eight cross sections near the obstacle. Discussions are made mainly on the minimum film thickness determined by the measured holdup. Whether the obstacle is inserted or not makes essential difference in the process of changing film thickness. Values of minimum film thickness for the upstream zone of the obstacle take minima at rather small air velocities and are reduced to approximately a tenth as large as those without obstacle. Minimum film thickness in the downstream zone decreases monotonously with air velocity.
- 一般社団法人日本機械学会の論文
著者
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Kawakami Yasushi
Ube Technical College
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SHIMIZU Hideo
Ube Technical College
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SEKOGUCHI Kotohiko
Professor, Faculty of Engineering, Kyushu University
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FUKANO Tohru
Associate Professor, Faculty of Engineering, Kyushu University
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KAWAKAMI Yasushi
Associate Professor, Ube Technical College
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SHIMIZU Hideo
Research Associate, Ube Technical College
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Sekoguchi Kotohiko
Faculty Of Engineering Kyushu University
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Sekoguchi Kotohiko
Faculty Of Engineering 36 Kyushu University
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