Crown-forming instability phenomena in the drop splash problem

被引:90
作者
Krechetnikov, Rouslan [2 ]
Homsy, George M. [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA
[2] Univ Alberta, Dept Math, Edmonton, AB, Canada
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词
Drop splash; Crown formation; Rim instability; Frustration phenomena; SINGLE DROP; LIQUID-FILM; IMPACT; SURFACES; SHEET;
D O I
10.1016/j.jcis.2008.11.079
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The objective of this work is to study the fundamental instability behind the crown formation in the problem of drop splashing on a pre-existing liquid Him. Based on experimental and theoretical insights, we demonstrate that the most plausible instability mechanism is of the Richtmyer-Meshkov type associated with a nearly impulsive acceleration of the interface. We also discover frustration phenomena in the wave number selection of the crown spike structure and study the corresponding bifurcation picture. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:555 / 559
页数:5
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