Capillary bulldozing of sedimented granular material confined in a millifluidic tube
| Autor: | Knut Jørgen Måløy, Bjørnar Sandnes, Eirik Grude Flekkøy, Guillaume Dumazer |
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| Přispěvatelé: | PoreLab, University of Oslo (UiO), The Njord center, Département Procédés de Mise en oeuvre des Milieux Granulaires (PMMG-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), College of Engineering [Swansea], Swansea University, University of Oslo - The Njord center - PoreLab, Swansea University - College of Engineering |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Capillary action Flow (psychology) Computational Mechanics Granular material 01 natural sciences Flow in porous media 010305 fluids & plasmas Physics::Fluid Dynamics Viscosity Granular matter Phase (matter) 0103 physical sciences [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering Granular flows Tube (container) 010306 general physics Fluid-particle interaction Fluid Flow and Transfer Processes Mechanics Sediment transport Condensed Matter::Soft Condensed Matter Capillarity Modeling and Simulation Pattern formation Rheology Displacement (fluid) Flow instability |
| Zdroj: | Physical Review Fluids Physical Review Fluids, American Physical Society, 2020, 5 (3), pp.034309. ⟨10.1103/PhysRevFluids.5.034309⟩ |
| ISSN: | 2469-990X |
| Popis: | International audience; The motion of a capillary interface across a deformable granular material in a confined geometry shows the complex interplay between viscous forces, solid friction, and capillary forces. In a horizontal quasi-one-dimensional geometrical confinement, a millifluidic tube, the displacement of a three-phase flow consisting of two fluids and a mobile granular phase exhibits viscous or frictional displacement regimes, as shown in [Phys. Rev. Lett. 117, 028002 (2016).]. In the present paper we explore in detail the dynamics in both regimes by making use of a new set of data. The viscous displacement regime which is characterized by a fluidization of the immersed granular material dragged by the flow driving the displacement of the capillary interface is interpreted from a rheological point of view. The frictional displacement regime which displays a self-structuring of the granular material left in the tube behind the invading capillary interface is interpreted by using a model based on the Janssen law to predict the typical size of the plugs obtained. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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