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: https://doi.org/10.1103/PhysRevE.76.056312

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.

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About

• Item ORO ID
• 41205
• Item Type
• Journal Item
• ISSN
• 1550-2376
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	FIS2006-03525	MEC, Spain
  Not Set	SGR-2005-00507	Generalitat de Catalunya
  Not Set	FIS2006-12253-C06-05	MEC, Spain

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2007 The American Physical Society
• Depositing User
• Marc Pradas