The effects of gravity on the capillary instability in tubes

被引：34

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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