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Self-Structuring of Granular material under Capillary Bulldozing

Guillaume Dumazer, Bjørnar Sandnes, Monem Ayaz, Knut Jørgen Måløy, Eirik Flekkøy, Bjornar Sandnes Orcid Logo

EPJ Web of Conferences, Volume: 140, Start page: 09016

Swansea University Author: Bjornar Sandnes Orcid Logo

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DOI (Published version): 10.1051/epjconf/201714009016

Abstract

An experimental observation of the structuring of a granular suspension under the progress of a gas/liquid meniscus in a narrow tube is reported here. The granular material is moved and compactifies as a growing accumulation front. The frictional interaction with the confining walls increases until...

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Published in: EPJ Web of Conferences
ISSN: 2100-014X
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34575
first_indexed 2017-07-07T20:11:17Z
last_indexed 2018-02-09T05:24:50Z
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spelling 2017-09-05T15:50:13.6171429 v2 34575 2017-07-07 Self-Structuring of Granular material under Capillary Bulldozing 61c7c04b5c804d9402caf4881e85234b 0000-0002-4854-5857 Bjornar Sandnes Bjornar Sandnes true false 2017-07-07 EAAS An experimental observation of the structuring of a granular suspension under the progress of a gas/liquid meniscus in a narrow tube is reported here. The granular material is moved and compactifies as a growing accumulation front. The frictional interaction with the confining walls increases until the pore capillary entry pressure is reached. The gas then penetrates the clogged granular packing and a further accumulation front is formed at the far side of the plug. This cyclic process continues until the gas/liquid interface reaches the tube’s outlet, leaving a trail of plugs in the tube. Such 1D pattern formation belongs to a larger family of patterning dynamics observed in 2D Hele-Shaw geometry. The cylindrical geometry considered here provides an ideal case for a theoretical modelling for forced granular matter oscillating between a long frictional phase and a sudden viscous fluidization. Journal Article EPJ Web of Conferences 140 09016 2100-014X 31 12 2017 2017-12-31 10.1051/epjconf/201714009016 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2017-09-05T15:50:13.6171429 2017-07-07T13:31:48.9145303 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Guillaume Dumazer 1 Bjørnar Sandnes 2 Monem Ayaz 3 Knut Jørgen Måløy 4 Eirik Flekkøy 5 Bjornar Sandnes 0000-0002-4854-5857 6 0034575-07072017133357.pdf dumazer2017.pdf 2017-07-07T13:33:57.6570000 Output 2418520 application/pdf Version of Record true 2017-07-07T00:00:00.0000000 true eng
title Self-Structuring of Granular material under Capillary Bulldozing
spellingShingle Self-Structuring of Granular material under Capillary Bulldozing
Bjornar Sandnes
title_short Self-Structuring of Granular material under Capillary Bulldozing
title_full Self-Structuring of Granular material under Capillary Bulldozing
title_fullStr Self-Structuring of Granular material under Capillary Bulldozing
title_full_unstemmed Self-Structuring of Granular material under Capillary Bulldozing
title_sort Self-Structuring of Granular material under Capillary Bulldozing
author_id_str_mv 61c7c04b5c804d9402caf4881e85234b
author_id_fullname_str_mv 61c7c04b5c804d9402caf4881e85234b_***_Bjornar Sandnes
author Bjornar Sandnes
author2 Guillaume Dumazer
Bjørnar Sandnes
Monem Ayaz
Knut Jørgen Måløy
Eirik Flekkøy
Bjornar Sandnes
format Journal article
container_title EPJ Web of Conferences
container_volume 140
container_start_page 09016
publishDate 2017
institution Swansea University
issn 2100-014X
doi_str_mv 10.1051/epjconf/201714009016
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 An experimental observation of the structuring of a granular suspension under the progress of a gas/liquid meniscus in a narrow tube is reported here. The granular material is moved and compactifies as a growing accumulation front. The frictional interaction with the confining walls increases until the pore capillary entry pressure is reached. The gas then penetrates the clogged granular packing and a further accumulation front is formed at the far side of the plug. This cyclic process continues until the gas/liquid interface reaches the tube’s outlet, leaving a trail of plugs in the tube. Such 1D pattern formation belongs to a larger family of patterning dynamics observed in 2D Hele-Shaw geometry. The cylindrical geometry considered here provides an ideal case for a theoretical modelling for forced granular matter oscillating between a long frictional phase and a sudden viscous fluidization.
published_date 2017-12-31T04:08:50Z
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score 11.089386

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