Abstract
We report experimental, theoretical and numerical results on the shapes of liquid menisci connecting a planar boundary and the surface of a horizontal cylinder placed above. The gradient of confinement traps the wetting drops in the most confined regions, which promotes their elongation along the line of smallest gap between the walls. The experimental shapes of these stretched capillary bridges are shown to be in good quantitative agreement with the numerical solution of the equation describing their contour. In particular, we show that the measured shapes are better described when taking into account the correction resulting from the coupling of in-plane and transverse interfacial curvatures calculated by Park & Homsy (J. Fluid Mech., vol. 139, 1984, pp. 291–308) over thirty years ago.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference26 articles.
1. The penetration of a fluid into a porous medium or Hele-Shaw cell containing a more viscous liquid
2. Normal capillary forces
3. Geoffroy, S. , Plouraboué, F. , Prat, M. & Amyot, O. 2006 Quasi-static liquid–air drainage in narrow channels with variations in the gap. J. Colloid Interface Sci. 294, 165–175.
4. Capillary bridge rupture in dip-pen nanolithography
5. Sur la surface de révolution dont la courbure moyenne est constante;Delaunay;J. Math. Pure Appl.,1841
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