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Article Dans Une Revue Physical Review Letters Année : 2016

Transition in the Flow of Power-Law Fluids through Isotropic Porous Media.

Résumé

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.
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Dates et versions

hal-03516501 , version 1 (07-01-2022)

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Frédéric Zami-Pierre, Romain De Loubens, Michel Quintard, Yohan Davit. Transition in the Flow of Power-Law Fluids through Isotropic Porous Media.. Physical Review Letters, 2016, 117, pp.074502/1-074502/5. ⟨10.1103/PhysRevLett.117.074502⟩. ⟨hal-03516501⟩
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