A study of gravitational effects on single elongated vapor bubbles
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- 作者：Alex Scammella ; ascammel@umd.edu" class="auth_mail" title="E-mail the corresponding author ; Jungho Kimb ; kimjh@umd.edu" class="auth_mail" title="E-mail the corresponding author ; Mirco Magninic ; mirco.magnini@epfl.ch" class="auth_mail" title="E-mail the corresponding author ; John R. Thomec ; john.thome@epfl.ch" class="auth_mail" title="E-mail the corresponding author
- 关键词：Taylor bubbles ; Heat transfer ; Microgravity
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：99
- 期：Complete
- 页码：904-917
- 全文大小：2934 K
文摘
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The heat transfer was measured around vapor slugs at various gravity levels as they rose in a 6 mm tube.
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The heat transfer mechanisms due to bubble passage were identified.
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At low drift velocities, the primary heat transfer enhancement occurred due to oscillations within the vapor film.
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At higher drift velocities, the heat transfer enhancement occurred in the bubble wake.