Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12826
Title: Anomalous roughening of Hele-Shaw flows with quenched disorder
Author: Soriano i Fradera, Jordi
Ramasco, J. J.
Rodríguez Díaz, Miguel Ángel
Hernández Machado, Aurora
Ortín, Jordi, 1959-
Keywords: Superfícies (Física)
Física estadística
Dinàmica de Fluids
Surfaces (Physics)
Statistical physics
Fluid dynamics
Issue Date: 2002
Publisher: American Physical Society
Abstract: The kinetic roughening of a stable oil-air interface moving in a Hele-Shaw cell that contains a quenched columnar disorder (tracks) has been studied. A capillary effect is responsible for the dynamic evolution of the resulting rough interface, which exhibits anomalous scaling. The three independent exponents needed to characterize the anomalous scaling are determined experimentally. The anomalous scaling is explained in terms of the initial acceleration and subsequent deceleration of the interface tips in the tracks coupled by mass conservation. A phenomenological model that reproduces the measured global and local exponents is introduced.
Note: Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.89.026102
It is part of: Physical Review Letters, 2002, vol. 89, núm. 2, p. 026102-1-026102-4
URI: http://hdl.handle.net/2445/12826
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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