The effects of gravity on the capillary instability in tubes

被引：32
|
作者：
Duclaux, V
Clanet, C
Quéré, D
机构：
[1] IRPHE, UMR 6594, F-13384 Marseille, France
[2] Coll France, CNRS, Phys Mat Condensee Lab, FRE 2844, F-75231 Paris 05, France
来源：
JOURNAL OF FLUID MECHANICS | 2006年 / 556卷
关键词：
D O I：
10.1017/S0022112006009505
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We study the capillary instability of a liquid film (thickness h(0)) coating a horizontal cylindrical tube (radius R-0). We show experimentally that the instability only occurs if h(0)/R-0 > 0.3(R-0/a)(2), where a is the capillary length. If this criterion is not fulfilled, the liquid film does not destabilize into an array of drops, owing to the gravitational drainage.
引用
收藏
页码：217 / 226
页数：10
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