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Microfluidics of imbibition in random porous media
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (FSCN)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (FSCN)
2013 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 87, no 2, 023006- p.Article in journal (Refereed) Published
Abstract [en]

A free-energy lattice Boltzmann approach has been used to perform simulations of liquid penetration into random porous media. We focus our study on the effects of microstructures, particularly microtopography, on liquid penetration driven by capillary force and external pressure. For this purpose we set up a model structure that consists of a network of interconnected capillaries with varying pore geometries. The results showed that the discontinuities in the solid-surface curvature, as are present as corners on the capillary surfaces, have strong influences on liquid penetration through their pinning effects and interactions with local geometry. DOI: 10.1103/PhysRevE.87.023006

Place, publisher, year, edition, pages
2013. Vol. 87, no 2, 023006- p.
Keyword [en]
Capillary force; Capillary surface; External pressures; Lattice boltzmann approaches; Liquid penetration; Local geometry; Micro topography; Pinning effects; Pore geometry; Random porous media
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-18646DOI: 10.1103/PhysRevE.87.023006ISI: 000314879400029Scopus ID: 2-s2.0-84874536204OAI: oai:DiVA.org:miun-18646DiVA: diva2:613542
Available from: 2013-04-04 Created: 2013-03-27 Last updated: 2017-12-06Bibliographically approved

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