Multi-bubble motion behavior of uniform magnetic field based on phase field model

doi:10.1088/1674-1056/ab6839

中国物理B ›› 2020, Vol. 29 ›› Issue (3): 34702-034702.doi: 10.1088/1674-1056/ab6839

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Multi-bubble motion behavior of uniform magnetic field based on phase field model

Chang-Sheng Zhu(朱昶胜), Zhen Hu(胡震), Kai-Ming Wang(王凯明)

1 School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, China;
2 State Key Laboratory of Gansu Advanced Processing and Recycling of Non-Ferrous Metal, Lanzhou University of Technology, Lanzhou 730050, China

收稿日期:2019-09-23 修回日期:2019-11-14 出版日期:2020-03-05 发布日期:2020-03-05
通讯作者: Chang-Sheng Zhu E-mail:zhucs2008@163.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 51661020, 11504149, and 11364024), the Postdoctoral Science Foundation of China (Grant No. 2014M560371), and the Funds for Distinguished Young Scientists of Lanzhou University of Technology (Grant No. J201304).

Multi-bubble motion behavior of uniform magnetic field based on phase field model

Chang-Sheng Zhu(朱昶胜)^1,2, Zhen Hu(胡震)¹, Kai-Ming Wang(王凯明)¹

1 School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, China;
2 State Key Laboratory of Gansu Advanced Processing and Recycling of Non-Ferrous Metal, Lanzhou University of Technology, Lanzhou 730050, China

Received:2019-09-23 Revised:2019-11-14 Online:2020-03-05 Published:2020-03-05
Contact: Chang-Sheng Zhu E-mail:zhucs2008@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 51661020, 11504149, and 11364024), the Postdoctoral Science Foundation of China (Grant No. 2014M560371), and the Funds for Distinguished Young Scientists of Lanzhou University of Technology (Grant No. J201304).

摘要/Abstract

摘要： Aiming at the interaction and coalescence of bubbles in gas-liquid two-phase flow, a multi-field coupling model was established to simulate deformation and dynamics of multi-bubble in gas-liquid two-phase flow by coupling magnetic field, phase field, continuity equation, and momentum equation. Using the phase field method to capture the interface of two phases, the geometric deformation and dynamics of a pair of coaxial vertical rising bubbles under the applied uniform magnetic field in the vertical direction were investigated. The correctness of results is verified by mass conservation method and the comparison of the existing results. The results show that the applied uniform magnetic field can effectively shorten the distance between the leading bubble and the trailing bubble, the time of bubbles coalescence, and increase the velocity of bubbles coalescence. Within a certain range, as the intensity of the applied uniform magnetic field increases, the velocity of bubbles coalescence is proportional to the intensity of the magnetic field, and the time of bubbles coalescence is inversely proportional to the intensity of the magnetic field.

关键词: bubbles coalescence, uniform magnetic field, numerical simulation, phase field method

Abstract: Aiming at the interaction and coalescence of bubbles in gas-liquid two-phase flow, a multi-field coupling model was established to simulate deformation and dynamics of multi-bubble in gas-liquid two-phase flow by coupling magnetic field, phase field, continuity equation, and momentum equation. Using the phase field method to capture the interface of two phases, the geometric deformation and dynamics of a pair of coaxial vertical rising bubbles under the applied uniform magnetic field in the vertical direction were investigated. The correctness of results is verified by mass conservation method and the comparison of the existing results. The results show that the applied uniform magnetic field can effectively shorten the distance between the leading bubble and the trailing bubble, the time of bubbles coalescence, and increase the velocity of bubbles coalescence. Within a certain range, as the intensity of the applied uniform magnetic field increases, the velocity of bubbles coalescence is proportional to the intensity of the magnetic field, and the time of bubbles coalescence is inversely proportional to the intensity of the magnetic field.

Key words: bubbles coalescence, uniform magnetic field, numerical simulation, phase field method

中图分类号: (Computational methods in fluid dynamics)

47.11.-j

47.55.dd (Bubble dynamics)

朱昶胜, 胡震, 王凯明. Multi-bubble motion behavior of uniform magnetic field based on phase field model[J]. 中国物理B, 2020, 29(3): 34702-034702.

Chang-Sheng Zhu(朱昶胜), Zhen Hu(胡震), Kai-Ming Wang(王凯明). Multi-bubble motion behavior of uniform magnetic field based on phase field model[J]. Chin. Phys. B, 2020, 29(3): 34702-034702.

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Multi-bubble motion behavior of uniform magnetic field based on phase field model

Multi-bubble motion behavior of uniform magnetic field based on phase field model

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