Experimental observation of von Karman vortices during drop impact

被引：31

作者：

Castrejon-Pita, A. A. ^{[1
]}

Castrejon-Pita, J. R. ^{[1
]}

Hutchings, I. M. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Cambridge CB3 0FS, England

来源：

PHYSICAL REVIEW E | 2012年 / 86卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

EJECTA SHEET; JETS;

D O I：

10.1103/PhysRevE.86.045301

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The observation of von Karman type vortices during the impact of water droplets onto a pool of water is reported. Shadowgraph imaging and laser-sheet visualization are used to document these events. The appearance of these vortices occurs within theoretically predicted regions in a Reynolds-splash number parameter space. In addition, and also in agreement with theoretical predictions, smooth splashing, with vortices absent, is found for smaller Reynolds number.

引用

页数：4

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