东北大学学报(自然科学版) ›› 2024, Vol. 45 ›› Issue (6): 808-815.DOI: 10.12068/j.issn.1005-3026.2024.06.007

• 材料与冶金 • 上一篇    

颗粒击穿气泡时气泡的变形和破裂

王飞1,2, 杨泽1, 陈进1(), 苏志坚1   

  1. 1.东北大学 材料电磁过程教育部重点实验室,辽宁 沈阳 110819
    2.辽宁红沿河核电有限公司,辽宁 大连 116000
  • 收稿日期:2023-03-25 出版日期:2024-06-15 发布日期:2024-09-18
  • 通讯作者: 陈进
  • 作者简介:王 飞(1998-),男,辽宁大连人,东北大学硕士研究生.

Deformation and Bursting of Bubbles When Particles Break Through Bubbles

Fei WANG1,2, Ze YANG1, Jin CHEN1(), Zhi-jian SU1   

  1. 1.Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110819,China
    2.Liaoning Hongyanhe Nuclear Power Co. ,Ltd. ,Dalian 116000,China.
  • Received:2023-03-25 Online:2024-06-15 Published:2024-09-18
  • Contact: Jin CHEN
  • About author:CHEN Jin, E-mail: chenjin@epm.neu.edu.cn

摘要:

通过高速摄像机拍摄研究了颗粒击穿半球气泡破碎的演变过程.观察并分析了气泡成型后边缘再生和对流情况、受到颗粒击穿时气泡破碎的概率、以及成孔后的气泡破碎行为.通过量纲分析以及实验研究发现,气泡破碎概率是雷诺数和韦伯数的函数,概率P=1.08?Re0.5We0.250.664,且当Re0.5We0.25>1?020时,概率升至100%,气泡破碎形成的不稳定性射流数量是奥内佐格数Oh的函数.气泡液膜的卷曲速度随溶液浓度提高而升高,气泡液厚度随浓度提高而减小.

关键词: 气泡边缘再生, 气泡液膜厚度, 气泡破裂, 气泡液膜边缘收缩速度, 膜液滴

Abstract:

The evolution of the particle?induced hemispherical bubble bursting process is invistigated using high?speed camera filming. The edge regeneration and convection after bubble formation, the probability of bubble bursting when subjected to particle penetration, and the bubble bursting behavior after hole formation are observed and analyzed. Through dimensional analysis and experimental research, it is found that the probability of bubble breaking probability is a function of Reynolds number and Weber number. The probability is given by?P=1.08?Re0.5We0.250.664, and the probability is reaches to 100% when Re0.5We0.25>1 020. The number of ligaments formed by bubble bursting is a function of the Oh number. The rim receding velocity of the bubble liquid film increases with the concentration of the solution increases and the film thickness decreases with the concentration increases.

Key words: bubble marginal regeneration, bubble liquid film thickness, bubble bursting, the rim receding velocity of bubble liquid film, film droplets

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