| Issue |
Europhys. Lett.
Volume 61, Number 3, February 2003
|
|
|---|---|---|
| Page(s) | 348 - 353 | |
| Section | Condensed matter: structure, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2003-00196-9 | |
| Published online | 01 January 2003 | |
Precursors of impregnation
1
Department of Mechanical Engineering, Massachusetts Institute of
Technology Cambridge, MA 02139, USA
2
Laboratoire de Physique de la Matière Condensée, UMR 7125 du
CNRS Collège de France - 75231 Paris Cedex 05, France
Received:
8
July
2002
Accepted:
19
November
2002
The progression of a liquid inside a porous medium often involves two macroscopic fronts: a main one, at the bottom, which saturates the medium; and a much thinner one, ahead, which propagates using the fine structures of the porous material. We discuss here different characteristics of this precursor. We show in particular how it can move faster than the main front, although it follows confined paths. We also describe its dynamics, and compare our results with different experimental situations.
PACS: 68.35.Ct – Interface structure and roughness / 68.08.Bc – Wetting
© EDP Sciences, 2003
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