物理学报Issue(9)：1-7,7.DOI:10.7498/aps.64.094704
单液滴撞击倾斜液膜飞溅过程的耦合Level Set-VOF模拟∗
A coupled level-set and volume-of-fluid simulation for splashing of single droplet impact on an inclined liquid film
摘要
Abstract
A coupled level set and volume of fluid (CLSVOF) method is utilized to simulate the droplet evolution, during splashing after impacting on an inclined liquid film, and the bubble entrainment by the droplet impacting of the liquid. The influence of impact angles of bubble entrainment, the processes of splashing pressure field and velocity field after impingement are studied and discussed. Compared with the results obtained by experiment, the validity of CLSVOF method is verifiled by simulating the droplet splashing on an inclined liquid film. Results indicate that the mechanisms of front and back splashing are different. The front splashing is caused by pressure difference in the neck region, and the back splashing is produced by radial flow in the liquid film. It is also found that along with the impact angle moving towards the large angle direction, the bubble entrainment number shows a reducing trend.关键词
液滴撞击/倾斜液膜/CLSVOF/空气卷吸Key words
drop impact/inclined liquid film/CLSVOF/bubble entrainment引用本文复制引用
戴剑锋,樊学萍,蒙波,刘骥飞..单液滴撞击倾斜液膜飞溅过程的耦合Level Set-VOF模拟∗[J].物理学报,2015,(9):1-7,7.基金项目
国家自然科学基金(批准号:50873047)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant No.50873047) （批准号:50873047）
