Experimental investigation of splash and crown formation during single drop impact on wetted surfaces

被引：267
|
作者：
Rioboo, R [1 ]
Bauthier, C [1 ]
Conti, J [1 ]
Voué, M [1 ]
De Coninck, J [1 ]
机构：
[1] Univ Mons, Ctr Res Mol Modeling, B-7000 Mons, Belgium
来源：
EXPERIMENTS IN FLUIDS | 2003年 / 35卷 / 06期
关键词：
drop impact; thin film measurement; two-phase flows; wall interactions;
D O I：
10.1007/s00348-003-0719-5
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Experimental results concerning crown formation during liquid drop impact on wetted surfaces are reported. Different liquids and numerous impact conditions are investigated. In particular, crown-splash (C-S) and deposition-crown (D-C) limits are determined on the basis of the experimental observations. These limits converge for dimensionless film thickness thinner than 0.03, leaving the outcome of crown formation unobserved. The sole Weber number and dimensionless film thickness cannot explain the phenomenon. It appears that all these data can be described using a combination of Weber and Ohnesorge numbers versus dimensionless film thickness.
引用
收藏
页码：648 / 652
页数：5
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