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Capillary bulldozing of sedimented granular material confined in a millifluidic tube
Physical Review Fluids, Volume: 5, Issue: 3
Swansea University Author:
Bjornar Sandnes
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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...
Published in: | Physical Review Fluids |
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ISSN: | 2469-990X |
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American Physical Society (APS)
2020
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URI: | https://cronfa.swan.ac.uk/Record/cronfa53645 |
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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) |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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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 |
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active_str |
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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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1763753489230462976 |
score |
11.021648 |