Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/135980
Title: | Avalanches and non-gaussian fluctuations of the global velocity of imbibition fronts |
Author: | Planet Latorre, Ramon Santucci, Stéphane Ortín, Jordi, 1959- |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 3-Mar-2009 |
Publisher: | American Physical Society |
Abstract: | We present an experimental study of the global velocity V ( t ) of a viscous fluid interface during forced-flow imbibition in a disordered medium. Our high resolution setup shows that the fronts display an intermittent behavior signature of a burstlike dynamics, with power-law distributed avalanches. When measured at scales comparable to the correlation length, velocity fluctuations follow an asymmetric non-Gaussian distribution, whose skewness increases with decreasing measuring window and/or injection flow rate, offering the effective number of degrees of freedom probed in our experiment. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.102.094502 |
It is part of: | Physical Review Letters, 2009, vol. 102, num. 9, p. 094502 |
URI: | http://hdl.handle.net/2445/135980 |
Related resource: | https://doi.org/10.1103/PhysRevLett.102.094502 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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File | Description | Size | Format | |
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600233.pdf | 451.81 kB | Adobe PDF | View/Open |
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