Numerical Simulation of Bubble Coalescence Based on VOF Method

Abstract:

This paper takes bubbles of bubble shell as research object, mainly studies two bubbles arranged in a vertical position. Applying VOF (volume of fluid) method to simulate interaction between two bubbles, analyses the effect of center distances and diameters on deformation and coalescence of bubbles. Results show that coalescence time of two bubbles with same diameters increases as the center distance increases. To two bubbles with different diameters, when the bigger bubble located beneath at the initial time, the smaller bubble moves upward first and then moves downward before two bubbles coalesce. When the smaller bubble located beneath at the initial time, bubble coalescence cannot happen. This paper is the basis of bubble group research, it is of positive significance to the bubble group research and performance improvement of bubble shell.

• Periodical: Applied Mechanics and Materials (Volumes 148-149)
• Pages: 814-817
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.148-149.814
• Online since: December 2011
• Authors: Zhi Yong Yang, Jian Dong Li, Guo Hua Zhang
• Keywords: Bubble Coalescence, Numerical Simulation, Volume of Fluid (VOF)

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