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Pressure-dependent scaling scenarios in experiments of spontaneous imbibition

Planet, R.; Pradas, M.; Hernández-Machado, A. and Ortín, J. (2007). Pressure-dependent scaling scenarios in experiments of spontaneous imbibition. Physical Review E, 76(5) 056312.

DOI (Digital Object Identifier) Link: https://doi.org/10.1103/PhysRevE.76.056312
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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.

Item Type: Journal Item
Copyright Holders: 2007 The American Physical Society
ISSN: 1550-2376
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetFIS2006-03525MEC, Spain
Not SetSGR-2005-00507Generalitat de Catalunya
Not SetFIS2006-12253-C06-05MEC, Spain
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 41205
Depositing User: Marc Pradas
Date Deposited: 30 Oct 2014 12:06
Last Modified: 07 Dec 2018 10:26
URI: http://oro.open.ac.uk/id/eprint/41205
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