Journal
PHYSICAL REVIEW LETTERS
Volume 118, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.114502
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Funding
- Leverhulme Trust
- Engineering and Physical Sciences Research Council (EPSRC) [EP/N016602/1]
- EPSRC [EP/N016602/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/N016602/1] Funding Source: researchfish
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The maximum speed at which a liquid can wet a solid is limited by the need to displace gas lubrication films in front of the moving contact line. The characteristic height of these films is often comparable to the mean free path in the gas so that hydrodynamic models do not adequately describe the flow physics. This Letter develops a model which incorporates kinetic effects in the gas, via the Boltzmann equation, and can predict experimentally observed increases in the maximum speed of wetting when (a) the liquid's viscosity is varied, (b) the ambient gas pressure is reduced, or (c) the meniscus is confined.
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