Issue |
Europhys. Lett.
Volume 59, Number 3, August 2002
|
|
---|---|---|
Page(s) | 370 - 376 | |
Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
DOI | https://doi.org/10.1209/epl/i2002-00204-2 | |
Published online | 01 September 2002 |
Bubbles creeping in a viscous liquid along a slightly inclined plane
Laboratoire de Physique de la Matière
Condensée, URA 792 du CNRS Collège de France -
75231 Paris Cedex 05, France
Received:
1
February
2002
Accepted:
13
May
2002
We describe the upwards movement of an air bubble creeping along a slightly inclined plane immersed in a viscous liquid which totally wets the solid. After characterizing the shape of the static bubble under a horizontal plane, we tilt the plane and study the resulting motion. The bubble reaches a steady velocity, which is described as a function of the bubble size, the liquid viscosity and the tilting angle. We interpret our results by considering the viscous dissipation in the so-called dynamic meniscus, which is the zone where a lubricating film forms.
PACS: 47.15.Gf – Low-Reynolds-number (creeping) flows / 68.15.+e – Liquid thin films / 83.50.Lh – Slip boundary effects (interfacial and free surface flows)
© EDP Sciences, 2002
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