摘要
对2个小气泡或小液滴之间的聚并进行了动力学分析,并考虑范德华力的影响,得到了界面无切向运动时气泡或液滴聚并所需时间与气泡直径、流体主体和界面性质的关系。
When two small drops or bubbles approach each other, a dimpled thin film is formed between them. A model is developed for the dynamics of the thinning film with tangential immobile interfaces, in which the London-van der Waals forces are taken into consideration. The model predicts the coalescence time, which is the time required for the thinning and rupture of the liquid film, by giving only the radii of the two drops and the required physical properties of the bulk fluid and interface. A more general expression for coalescence time is derived. The predicted result is in good agreement with previous experimental results.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1994年第1期38-44,共7页
CIESC Journal
基金
国家自然科学基金
关键词
气泡聚并
液滴聚并
液膜流动
bubble coalescence, drop coalescence, film flow
