Zami-Pierre, Frédéric and Loubens, Romain de and Quintard, Michel
and Davit, Yohan
Transition in the Flow of Power-Law Fluids through Isotropic Porous Media.
(2016)
Physical Review Letters, 117. 074502/1-074502/5. ISSN 0031-9007
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: http://dx.doi.org/10.1103/PhysRevLett.117.074502
Abstract
We use computational fluid dynamics to explore the creeping flow of power-law fluids through isotropic porous media. We find that the flow pattern is primarily controlled by the geometry of the porous structure rather than by the nonlinear effects in the rheology of the fluid. We further highlight a macroscale transition between a Newtonian and a non-Newtonian regime, which is the signature of a coupling between the viscosity of the fluid and the structure of the porous medium. These complex features of the flow can be condensed into an effective length scale, which defines both the non-Newtonian transition and the Newtonian permeability.
Item Type: | Article |
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Additional Information: | Thanks to American Physical Society. The definitive version is available at: http://journals.aps.org/ The original PDF of the article can be found at: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.074502 |
HAL Id: | hal-03516501 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Other partners > Total (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
Funders: | Total |
Statistics: | download |
Deposited On: | 23 Aug 2016 12:41 |
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