当前位置: X-MOL 学术Int. J. Multiphase Flow › 论文详情
Deformation and breakup of droplets in an oblique continuous air stream
International Journal of Multiphase Flow ( IF 2.829 ) Pub Date : 2019-10-09 , DOI: 10.1016/j.ijmultiphaseflow.2019.103141
Surendra Kumar Soni, Pavan Kumar Kirar, Pankaj Kolhe, Kirti Chandra Sahu

We experimentally investigate the deformation and breakup of droplets interacting with an oblique continuous air stream. A high-speed imaging system is employed to record the trajectories and topological changes of the droplets of different liquids. The droplet size, the orientation of the air nozzle to the horizontal and fluid properties (surface tension and viscosity) are varied to study different breakup modes. We found that droplet possessing initial momentum before entering the continuous air stream exhibits a variation in the required Weber number for the vibrational mode to the bag breakup transition with a change in the angle of the air stream. The critical Weber numbers (Wecr) for the bag-type breakup are obtained as a function of the Eötvös number (Eo), angle of inclination of the air stream (α) and the Ohnesorge number (Oh). It is found that although the droplet follows a rectilinear motion initially that transforms to a curvilinear motion at later times when the droplet undergoes topological changes. The apparent acceleration of the droplet and its size influence the critical Weber number for the bag breakup mode. The departure from the cross-flow arrangement shows a sharp decrease in the critical Weber number for the bag breakup, which asymptotically reaches a value associated with the in-line (opposed) flow configuration for the droplet breakup.
更新日期:2019-10-10

 

全部期刊列表>>
Springer Nature 2019高下载量文章和章节
化学/材料学中国作者研究精选
《科学报告》最新环境科学研究
ACS材料视界
自然科研论文编辑服务
中南大学国家杰青杨华明
南开大学陈弓课题组招聘启事
中南大学
材料化学和生物传感方向博士后招聘
课题组网站
X-MOL
北京大学分子工程苏南研究院
华东师范大学分子机器及功能材料
中山大学化学工程与技术学院
试剂库存
天合科研
down
wechat
bug