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Capillary bulldozing of sedimented granular material confined in a millifluidic tube

Guillaume Dumazer Orcid Logo, Bjornar Sandnes Orcid Logo, Knut Jørgen Måløy Orcid Logo, Eirik G. Flekkøy

Physical Review Fluids, Volume: 5, Issue: 3

Swansea University Author: Bjornar Sandnes Orcid Logo

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DOI (Published version): 10.1103/physrevfluids.5.034309

Abstract

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-ph...

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Published in: Physical Review Fluids
ISSN: 2469-990X
Published: American Physical Society (APS) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa53645
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first_indexed 2020-02-27T13:41:10Z
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spelling 2022-12-05T13:27:51.7358792 v2 53645 2020-02-27 Capillary bulldozing of sedimented granular material confined in a millifluidic tube 61c7c04b5c804d9402caf4881e85234b 0000-0002-4854-5857 Bjornar Sandnes Bjornar Sandnes true false 2020-02-27 CHEG 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 [{} 117 , 028002 (2016)]. In the present paper we explore in details 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 with a model based on the Janssen’s law able to predict the typical size of the plugs obtained. Journal Article Physical Review Fluids 5 3 American Physical Society (APS) 2469-990X 30 3 2020 2020-03-30 10.1103/physrevfluids.5.034309 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2022-12-05T13:27:51.7358792 2020-02-27T11:07:36.3930349 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Guillaume Dumazer 0000-0003-4240-7338 1 Bjornar Sandnes 0000-0002-4854-5857 2 Knut Jørgen Måløy 0000-0002-7841-468x 3 Eirik G. Flekkøy 4 53645__16709__f67c2acc38c848ad9d9696455af5fdd5.pdf Dumazer2020.pdf 2020-02-27T11:09:52.1345154 Output 2583924 application/pdf Accepted Manuscript true true English
title Capillary bulldozing of sedimented granular material confined in a millifluidic tube
spellingShingle Capillary bulldozing of sedimented granular material confined in a millifluidic tube
Bjornar Sandnes
title_short Capillary bulldozing of sedimented granular material confined in a millifluidic tube
title_full Capillary bulldozing of sedimented granular material confined in a millifluidic tube
title_fullStr Capillary bulldozing of sedimented granular material confined in a millifluidic tube
title_full_unstemmed Capillary bulldozing of sedimented granular material confined in a millifluidic tube
title_sort Capillary bulldozing of sedimented granular material confined in a millifluidic tube
author_id_str_mv 61c7c04b5c804d9402caf4881e85234b
author_id_fullname_str_mv 61c7c04b5c804d9402caf4881e85234b_***_Bjornar Sandnes
author Bjornar Sandnes
author2 Guillaume Dumazer
Bjornar Sandnes
Knut Jørgen Måløy
Eirik G. Flekkøy
format Journal article
container_title Physical Review Fluids
container_volume 5
container_issue 3
publishDate 2020
institution Swansea University
issn 2469-990X
doi_str_mv 10.1103/physrevfluids.5.034309
publisher American Physical Society (APS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description 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 [{} 117 , 028002 (2016)]. In the present paper we explore in details 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 with a model based on the Janssen’s law able to predict the typical size of the plugs obtained.
published_date 2020-03-30T04:06:43Z
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score 11.013686

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