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http://hdl.handle.net/2445/135319
Title: | Anomalous Roughening of Viscous Fluid Fronts in Spontaneous Imbibition |
Author: | Soriano i Fradera, Jordi Mercier, A. Planet Latorre, Ramon Hernández Machado, Aurora Rodríguez, M. A. Ortín, Jordi, 1959- |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 30-Aug-2005 |
Publisher: | American Physical Society |
Abstract: | We report experiments on spontaneous imbibition of a viscous fluid by a model porous medium in the absence of gravity. The average position of the interface satisfies Washburn's law. Scaling of the interface fluctuations suggests a dynamic exponent z ≃ 3 , indicative of global dynamics driven by capillary forces. The complete set of exponents clearly shows that interfaces are not self-affine, exhibiting distinct local and global scaling, both for time ( β = 0.64 ± 0.02 , β ∗ = 0.33 ± 0.03 ) and space ( α = 1.94 ± 0.20 , α loc = 0.94 ± 0.10 ). These values are compatible with an intrinsic anomalous scaling scenario. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.95.104501 |
It is part of: | Physical Review Letters, 2005, vol. 95, num. 10, p. 104501 |
URI: | http://hdl.handle.net/2445/135319 |
Related resource: | https://doi.org/10.1103/PhysRevLett.95.104501 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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601146.pdf | 1.38 MB | Adobe PDF | View/Open |
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