期刊
JOURNAL OF FLUID MECHANICS
卷 937, 期 -, 页码 -出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/jfm.2022.107
关键词
capillary flows; breakup; coalescence; jets
资金
- Austrian Science Fund (FWF) [P31064-N36]
- Austrian Science Fund (FWF) [P31064] Funding Source: Austrian Science Fund (FWF)
A model is developed to predict the fragmentation limit of drops colliding off-centre, which is excellent over a wide range of liquid properties. The stretching separation is attributed to the extension of the merged drop above a critical aspect ratio influenced by liquid viscosity. The model is then adapted to drop-jet collisions, with similar fragmentation criteria but modified aspect ratio evolution to account for different flow fields and geometry.
We develop a model to predict the fragmentation limit of drops colliding off-centre. The prediction is excellent over a wide range of liquid properties and it can be used without adjusting any parameter. The so-called stretching separation is attributed to the extension of the merged drop above a critical aspect ratio of 3.25. The evolution of this aspect ratio is influenced by the liquid viscosity and can be interpreted via an energy balance. This approach is then adapted to drop-jet collisions, which we model as consecutive drop-drop collisions. The fragmentation criterion is similar to that observed for drop-drop collisions, while the evolution of the stretched jet aspect ratio is modified to account for the different flow fields and geometry.
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