Contact line stability and "undercompressive shocks" in driven thin film flow

被引：88

作者：

Bertozzi, AL ^{[1
]}

Münch, A

Fanton, X

Cazabat, AM

机构：

[1] Duke Univ, Dept Math, Durham, NC 27708 USA

[2] Duke Univ, Dept Phys, Durham, NC 27708 USA

[3] Coll France, Lab Matiere Condensee, F-75231 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.81.5169

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present new experimental results for films driven by a thermal gradient with an opposing gravitational force. When the gravitational effect becomes non-negligible, the advancing front produces a very large capillary ridge which shows a remarkable tendency to remain stable. This phenomenon can be explained by new mathematical results for a lubrication model of the experiment. The advancing front evolves into an "undercompressive" capillary shock structure which is stable to contact line perturbations, unlike typical capillary ridges in driven film flows. [S0031-9007(98)07868-5].

引用

页码：5169 / 5172

页数：4

共 15 条

[1] Linear stability and transient growth in driven contact lines [J].