期刊
PHYSICAL REVIEW LETTERS
卷 111, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.028301
关键词
-
资金
- NSF through its MRSEC Program [DMR-0820054]
- U.S. Army Research Office [W911NF-12-1-0182]
We investigate the impact of droplets of dense suspensions onto a solid substrate. We show that a global hydrodynamic balance is unable to predict the splash onset and propose to replace it by an energy balance at the level of the particles in the suspension. We experimentally verify that the resulting, particle-based Weber number gives a reliable, particle size and density dependent splash onset criterion. We further show that the same argument also explains why, in bimodal systems, smaller particles are more likely to escape than larger ones.
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