Controlled formation of bubbles in a planar co-flow configuration

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• 作者：J. Ruiz-Rus^a ; R. Bolañ ; os-Jimé ; nez ; ^a ; ^{rbolanos@ujaen.es} ; C. Gutié ; rrez-Montes^a ; A. Sevilla^b ; C. Martí ; nez-Bazá ; n^a
• 关键词：Bubble formation ; Bubbling frequency ; Forced breakup
• 刊名：International Journal of Multiphase Flow
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：89
• 期：Complete
• 页码：69-80
• 全文大小：2424 K
• 卷排序：89

文摘

A novel technique to force the bubble pinch-off in a water-air-water planar co-flow configuration is presented. The forcing process consists of a perturbation of the water velocity. Smaller bubbles at higher frequencies than in the natural process are produced. The forcing method is characterized experimentally. A one-dimensional model that describes the experimental and numerical air-water interface is proposed.