| Issue |
EPL
Volume 100, Number 5, December 2012
|
|
|---|---|---|
| Article Number | 54002 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/100/54002 | |
| Published online | 12 December 2012 | |
Liquid Hertz contact: Softness of weakly deformed drops on non-wetting substrates
1 Laboratoire Kastler Brossel, CNRS, UPMC, École Normale Supérieure - 24 rue Lhomond, F-75231 Paris, France, EU
2 Laboratoire de Physique des Solides, Univ. Paris-Sud, CNRS, UMR 8502 - F-91405, Orsay, France, EU
3 Physique et Mécanique des Milieux Hétérogènes, UMR 7636, CNRS-UPMC-Paris 7-ESPCI F-75005 Paris, France, EU
4 Laboratoire PCT, UMR Gulliver CNRS-ESPCI 7083 - 10 Rue Vauquelin, F-75231 Paris Cedex 05, France, EU
Received: 24 September 2012
Accepted: 8 November 2012
The behavior of weakly deformed drops on non-wetting surfaces is usually described using linear models. We show that these simple pictures cannot account for measurements of the dynamics of droplets that oscillate or bounce on super-hydrophobic substrates. We demonstrate that several peculiar experimental observations observed in previous works can be understood through a logarithmic correction of the linear model.
PACS: 47.35.-i – Hydrodynamic waves / 47.15.km – Potential flows / 47.35.Pq – Capillary waves
© EPLA, 2012
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