Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/18737
Title: Pressure-dependent scaling scenarios in experiments of spontaneous imbibition
Author: Planet Latorre, Ramon
Pradas Gené, Marc
Hernández Machado, Aurora
Ortín, Jordi, 1959-
Keywords: Dinàmica de fluids
Fenòmens crítics (Física)
Fluid dynamics
Critical phenomena (Physics)
Issue Date: 2007
Publisher: The American Physical Society
Abstract: The scaling properties of the rough liquid-air interface formed in the spontaneous imbibition of a viscous liquid by a model porous medium are found to be very sensitive to the magnitude of the pressure difference applied at the liquid inlet. Interface fluctuations change from obeying intrinsic anomalous scaling at large negative pressure differences, to being super-rough with the same dynamic exponent z¿3 at less negative pressure differences, to finally obeying ordinary Family-Vicsek scaling with z¿2 at large positive pressure differences. This rich scenario reflects the relative importance on different length scales of capillary and permeability disorder, and the role of surface tension and viscous pressure in damping interface fluctuations.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.76.056312
It is part of: Physical Review E, 2007, vol. 76, núm. 5, p. 056312-1-056312-7
URI: http://hdl.handle.net/2445/18737
ISSN: 1539-3755
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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