Format

Send to

Choose Destination
Phys Rev Lett. 2006 Apr 21;96(15):154502. Epub 2006 Apr 19.

Self-propelled Leidenfrost droplets.

Author information

1
Materials Science Institute and Physics Department, University of Oregon, Eugene, Oregon 97405-1274, USA. linke@uoregon.edu

Abstract

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.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center