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On the anomalous dynamics of capillary rise in porous media
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Shikhmurzaev, Yulii D. and Sprittles, James E. (2012) On the anomalous dynamics of capillary rise in porous media. Physical Review E, 86 . 016306. doi:10.1103/PhysRevE.86.016306 ISSN 1539-3755.
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Official URL: http://dx.doi.org/10.1103/PhysRevE.86.016306
Abstract
The anomalous dynamics of capillary rise in a porous medium discovered experimentally more than a decade ago [T. Delker et al., Phys. Rev. Lett. 76, 2902 (1996)] is described. The developed theory is based on considering the principal modes of motion of the menisci that collectively form the wetting front on the Darcy scale. These modes, which include (i) dynamic wetting mode, (ii) threshold mode, and (iii) interface depinning process, are incorporated into the boundary conditions for the bulk equations formulated in the regular framework of continuum mechanics of porous media, thus allowing one to consider a general case of three-dimensional flows. The developed theory makes it possible to describe all regimes observed in the experiment, with the time spanning more than four orders of magnitude, and highlights the dominant physical mechanisms at different stages of the process.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Library of Congress Subject Headings (LCSH): | Capillarity, Porous materials | ||||
Journal or Publication Title: | Physical Review E | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1539-3755 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | 86 | ||||
Article Number: | 016306 | ||||
DOI: | 10.1103/PhysRevE.86.016306 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 10 May 2016 | ||||
Date of first compliant Open Access: | 10 May 2016 | ||||
Funder: | King Abdullah University of Science and Technology (KAUST) | ||||
Grant number: | KUK-C1-013-04 (KAUST) | ||||
Open Access Version: |
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