Droplet impact onto movingl iquids
Droplet impact onto movingl iquids
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DOI：
10.1017/jfm.2016.672
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发表时间：
2016-12-01
影响因子：
3.7
通讯作者：
Castrejon-Pita, A. A.
中科院分区：
文献类型：
--
作者：
Castrejon-Pita, Rafael;Munoz-Sanchez, Beatriz N.;Castrejon-Pita, A. A.
从降落在海洋上的雨滴到喷墨打印，液滴对移动液体表面的影响是自然界和工业中普遍存在的过程。可能会出现各种各样的现象。其特性取决于惯性、液滴的性质和冲击区的相对速度。虽然结果范围从平静的聚结到剧烈的飞溅，但也会出现中间状态，包括液滴的部分和完全反弹，甚至“冲浪”。这些状态由液滴速度和表面速度的比率以及液体性质决定。可以构造一个状态图，其中清楚地识别出不同的动态状态。
From rain drops landing on the ocean to inkjet printing, the impact of droplets onto moving liquid surfaces is a ubiquitous process in nature and in industry. A rich range of phenomena can arise. The behaviour depends on the inertia, the properties of the drops and the relative speeds in the impact zone. While the result ranges from tranquil coalescence to violent splashing, intermediate regimes also occur, including partial and complete bouncing and even 'surfing' of the droplet. These regimes are determined by the ratio of the drop and surface velocities and the liquid properties. A regime diagram can be constructed in which distinct dynamical regimes are clearly identified.