Dynamical Model for Chemically Driven Running Droplets
| dc.creator | Thiele, Uwe | |
| dc.creator | John, Karin | |
| dc.creator | Bär, Markus | |
| dc.date | 2004-03-01 | |
| dc.date | 2004-05-07 | |
| dc.date.accessioned | 2026-07-07T02:56:44Z | |
| dc.date.available | 2026-07-07T02:56:44Z | |
| dc.description | We propose coupled evolution equations for the thickness of a liquid film and the density of an adsorbate layer on a partially wetting solid substrate. Therein, running droplets are studied assuming a chemical reaction underneath the droplets that induces a wettability gradient on the substrate and provides the driving force for droplet motion. Two different regimes for moving droplets -- reaction-limited and saturated regime -- are described. They correspond to increasing and decreasing velocities with increasing reaction rates and droplet sizes, respectively. The existence of the two regimes offers a natural explanation of prior experimental observations. | |
| dc.description | 4 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0403043 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0403043 | |
| dc.identifier | Phys. Rev. Lett. 93, 027802 (2004) | |
| dc.identifier | doi:10.1103/PhysRevLett.93.027802 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23443 | |
| dc.subject | Soft Condensed Matter | |
| dc.subject | Chemical Physics | |
| dc.title | Dynamical Model for Chemically Driven Running Droplets | |
| dc.type | text |