Plateau-Rayleigh instability in a torus: formation and breakup of a polymer ring

被引：63

作者：

McGraw, Joshua D. ^{[1
,2
]}

Li, Jianfeng ^{[1
,2
,3
]}

Tran, David L. ^{[1
,2
]}

Shi, An-Chang ^{[1
,2
]}

Dalnoki-Veress, Kari ^{[1
,2
]}

机构：

[1] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[2] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada

[3] Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China

来源：

SOFT MATTER | 2010年 / 6卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DYNAMICS; BLENDS; FLOWS;

D O I：

10.1039/b919630g

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：

A liquid jet can break up into a stream of droplets as a result of the Plateau-Rayleigh instability. The droplet formation decreases the jet's surface area and hence its free energy. Here we present the results of experiments in an unconventional geometry where this instability can be observed: a toroidal section. We discuss the formation of these polystyrene toroids with nanometer length scales. The constraints imposed by this geometry affect its observed instability in comparison to a simple linear jet. Specifically, we show that the additional curvature imposed by the torus can have a significant impact on the energy minimization route.

引用

页码：1258 / 1262

页数：5

共 16 条

[1] Capillary flow as the cause of ring stains from dried liquid drops [J].