Towards the understanding of bubble-bubble interaction upon formation at submerged orifices: A numerical approach

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• 作者：Basanta Kumar Rana^a ; Arup Kumar Das^b ; ^{arupdas80@gmail.com} ; Prasanta Kumar Das^a
• 关键词：Bubble evolution ; Coalescence ; Volume flow rate of air ; Inflow condition
• 刊名：Chemical Engineering Science
• 出版年：2017
• 出版时间：6 April 2017
• 年：2017
• 卷：161
• 期：Complete
• 页码：316-328
• 全文大小：6078 K
• 卷排序：161

文摘

We present the bubble-bubble interaction patterns when emerged from submerged orifices. Three distinct patterns of bubble release dependent on mutual spacing of the orifices are reported. Hydrodynamic reasons of different merging regimes are described using velocity vectors around the bubbles. A map of different zones as a function of Mo, orifice diameter and spacing has been proposed. Effect of van der Waals force has been established in connection of bridge thinning by virtue of gas inertia.