Dynamics of a Surface Bump Generated by an Air-Water Free Surface Jet Impingement
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概要
- 論文の詳細を見る
A submerged water jet impinging upon a free air-water surface has been investigated experimentally. The present work focuses on the dynamic deformation of the surface bump generated in the jet impingement region. The surface bump has a quake motion comprising two basic oscillations: fluttering motion (transversely) and swelling motion (vertically). The velocity measurement was made beneath the bump with hot-wire anemometry. The motion of the geometrical stagnation point was analyzed with the aid of an image processing. It has been ascertained that a helical instability of the approaching jet is the origin of the fluttering motion of the surface bump and that the swelling motion is controlled by the large-scale vortical/turbulent structure of the approaching jet convected with phase velocity.
- 社団法人 化学工学会の論文
- 2003-02-01
著者
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Ohmura Naoto
Department Of Chemical Science And Engineering Kobe University
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Zheng Jianxing
Division Of Resource And Energy Science Graduate School Of Science And Technology Kobe University
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Kataoka Kunio
Department Of Chemical Engineering Kobe University
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Yoshimura Tokuo
Department Of Chemical Science And Engineering Kobe University
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Ohmura Naoto
Department Of Chemical Science And Engineering Graduate School Of Engineering Kobe University
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Zheng Janxing
Division of Resource and Energy Science, Graduate School of Science and Technology, Kobe University,
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