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Viscous drops rolling on a tilted non-wettable solid
Open accessAbstract
A viscous liquid drop sliding down an inclined solid that it partially wets runs all the faster since it is large. Here we examine what happens in the limit of very high contact angles, on a so-called super-hydrophobic surface. It is shown that a droplet rolls instead of sliding, which leads to a surprising law for the velocity as a function of the drop radius: the smaller the droplet, the larger the running velocity. A recent model of Mahadevan and Pomeau allows us to propose an explanation for this paradoxical behaviour.
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Cited by
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Quéré, D. (2005) · Reports on Progress in Physics · doi:10.1088/0034-4885/68/11/r01 · Cited by 1,249
Self-citationA review on ‘self-cleaning and multifunctional materials’
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Wetting and Wetting Transitions on Copper-Based Super-Hydrophobic Surfaces
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Metadata
- Authors
- Richard, D., & Quéré, D.
- Venue
- Europhysics Letters (EPL)
- Publisher
- IOP Publishing
- Published
- 1999-11-01
- Volume
- 48
- Issue
- 3
- Pages
- 286-291
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W2167712633
- Cited by
- 235
- References
- 0
- FWCI
- 6.64
- Type
- journal article
- Language
- en
- Open access
- bronze
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