Simulation of single bubble dynamic process in pool boiling process under microgravity based on phase field method
Chang-Sheng Zhu(朱昶胜)1,2,†, Bo-Rui Zhao(赵博睿)1, Yao Lei(雷瑶)1, and Xiu-Ting Guo(郭秀婷)1
1 College 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
Abstract We use the phase field method to track the gas-liquid interface based on the gas-liquid two-phase flow in the pool boiling process, and study the bubble nucleation, growth, deformation, departure and other dynamic behaviors on the heating surface under microgravity. By simulating the correlation between liquid undercooling and bubble dynamics, we find that the bubble growth time increases with the increase of liquid undercooling, but the effect of liquid undercooling on bubble height is not significant. Meanwhile, the gas-liquid-solid three-phase contact angle and the gravity level will also have an effect on the bubble growth time and bubble height. With the increase of the contact angle, the bubble growth time and bubble height when the bubble departs also increase. While the effect of gravity level is on the contrary, the smaller the gravity level is, the larger the bubble height and bubble growth time when the bubble separates.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 52161002, 51661020, and 11364024), the Postdoctoral Science Foundation of China (Grant No. 2014M560371), and the Funds for Distinguished Young Scientists of Lanzhou University of Technology of China (Grant No. J201304).
Chang-Sheng Zhu(朱昶胜), Bo-Rui Zhao(赵博睿), Yao Lei(雷瑶), and Xiu-Ting Guo(郭秀婷) Simulation of single bubble dynamic process in pool boiling process under microgravity based on phase field method 2023 Chin. Phys. B 32 044702
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