Lin Peifeng, Chen Qi, Liu Youju, Hu Xiao, Zhu Zuchao
Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
ACS Omega. 2022 Jun 28;7(27):23890-23898. doi: 10.1021/acsomega.2c02602. eCollection 2022 Jul 12.
Droplet formation and growth processes have numerous scientific and industrial applications. Experimental and numerical studies on the formation, growth, and breaking of droplet are carried out in present work. The numerical results are in good agreement with the experiment. This work focused on the effect of different Weber numbers () on the droplet breaking time. The results show when < 0.05, the length and volume of the droplet increase, and the breaking time decreases rapidly. The resultant force acting on the main droplet suddenly drops around the critical breaking time. The difference rate between the time (when the resultant force is zero) and the breaking time is less than 8.49%. For the dimensional analysis of the numerical results, a prediction formula of breaking time on the Weber number is modeled as + for < 0.5.
液滴形成和生长过程有众多科学和工业应用。目前的工作开展了关于液滴形成、生长和破裂的实验与数值研究。数值结果与实验结果吻合良好。这项工作聚焦于不同韦伯数（）对液滴破裂时间的影响。结果表明，当<0.05时，液滴的长度和体积增加，且破裂时间迅速减小。在临界破裂时间附近，作用于主液滴的合力突然下降。合力为零的时间与破裂时间之间的差异率小于8.49%。为对数值结果进行量纲分析，针对<0.5的情况，建立了一个关于韦伯数的破裂时间预测公式，即+ 。
