Self-propelled Leidenfrost droplets

被引：454

作者：

Linke, H ^{[1
]}

Alemán, BJ

Melling, LD

Taormina, MJ

Francis, MJ

Dow-Hygelund, CC

Narayanan, V

Taylor, RP

Stout, A

机构：

[1] Univ Oregon, Inst Mat Sci, Eugene, OR 97405 USA

[2] Univ Oregon, Dept Phys, Eugene, OR 97405 USA

[3] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

[4] Oregon State Univ, Dept Mech Engn, Corvallis, OR 97331 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.96.154502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report that liquids perform self-propelled motion when they are placed in contact with hot surfaces with asymmetric (ratchetlike) topology. The pumping effect is observed when the liquid is in the Leidenfrost regime (the film-boiling regime), for many liquids and over a wide temperature range. We propose that liquid motion is driven by a viscous force exerted by vapor flow between the solid and the liquid.

引用

页数：4

共 22 条

[1]

BAUMEISTER KJ, 1966, AICHE J, V6, P66

[2] The Leidenfrost point: Experimental study and assessment of existing models [J].