期刊
PHYSICS OF FLUIDS
卷 24, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4729791
关键词
computational fluid dynamics; drops; jets; mixing; organic compounds
资金
- Deutsche Forschungsgemeinschaft (DFG) [BA 1569-40-1 KE 837-11-1]
In this work, we present the results of experimental and numerical investigation of the liquid bridge building and internal flows during a binary droplet-droplet coalescence event. A system consisting of two rising toluene droplets with different droplet radii that coalesce in surrounding water is considered. The growth of the liquid bridge between the two droplets during the coalescence event is found to be in the inertial regime, whereas the bridge radius grows in proportion to the square root of time. Further, the internal mixing of the two droplets is investigated. It is observed that when two droplets with the same radius coalesce, there is nearly no internal mixing within the first 40 ms after the coalescence start. In contrast, when two droplets with different radii coalesce, a liquid jet directed from the smaller to the larger droplet appears during the coalescence event. A good agreement between the experimental and numerical data is established. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4729791]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据