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A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING

Deren Ozturk, Bjornar Sandnes Orcid Logo

Journal of Porous Media, Volume: 22, Issue: 8, Pages: 987 - 1000

Swansea University Authors: Deren Ozturk, Bjornar Sandnes Orcid Logo

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DOI (Published version): 10.1615/jpormedia.2019026005

Abstract

Using high-speed imaging and digital image correlation, we studied the granular motion and deformation caused by pneumatic fracturing of a wet granular packing in a Hele–Shaw cell subject to a constant injection of air. These pneumatic fractures form patterns of conductive pathways whose form is det...

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Published in: Journal of Porous Media
ISSN: 1091-028X
Published: Begell House 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa52472
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first_indexed 2019-10-16T14:26:47Z
last_indexed 2019-10-17T14:22:40Z
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spelling 2019-10-17T11:19:08.6294805 v2 52472 2019-10-16 A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING 14712812fc31e03fc3a3bc9033165beb Deren Ozturk Deren Ozturk true false 61c7c04b5c804d9402caf4881e85234b 0000-0002-4854-5857 Bjornar Sandnes Bjornar Sandnes true false 2019-10-16 FGSEN Using high-speed imaging and digital image correlation, we studied the granular motion and deformation caused by pneumatic fracturing of a wet granular packing in a Hele–Shaw cell subject to a constant injection of air. These pneumatic fractures form patterns of conductive pathways whose form is determined by a complex interplay between pressure, capillary, frictional, and viscous forces. Saturated granular media is pneumatically fractured in this fashion in multiple natural, geo-engineering, and industrial processes. We outline the characteristics of these fracture networks and then examine individual fracture growth events and the local motion of grains with a time resolution of milliseconds. We observe intermittent frictional behavior during these rapid fracturing events, describe an average velocity profile for the motion of grains during fracturing, and illustrate an average compaction profile as a result of these deformations. Journal Article Journal of Porous Media 22 8 987 1000 Begell House 1091-028X granular media, fracturing, porous media, capillary forces, friction, multiphase flow, highspeed imaging, particle image velocimetry, Hele-Shaw cell, compaction front 30 9 2019 2019-09-30 10.1615/jpormedia.2019026005 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-10-17T11:19:08.6294805 2019-10-16T09:24:34.1132844 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Deren Ozturk 1 Bjornar Sandnes 0000-0002-4854-5857 2 0052472-17102019111815.pdf ozturk2019.pdf 2019-10-17T11:18:15.5430000 Output 25197771 application/pdf Accepted Manuscript true 2020-09-01T00:00:00.0000000 true eng
title A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
spellingShingle A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
Deren Ozturk
Bjornar Sandnes
title_short A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
title_full A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
title_fullStr A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
title_full_unstemmed A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
title_sort A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING
author_id_str_mv 14712812fc31e03fc3a3bc9033165beb
61c7c04b5c804d9402caf4881e85234b
author_id_fullname_str_mv 14712812fc31e03fc3a3bc9033165beb_***_Deren Ozturk
61c7c04b5c804d9402caf4881e85234b_***_Bjornar Sandnes
author Deren Ozturk
Bjornar Sandnes
author2 Deren Ozturk
Bjornar Sandnes
format Journal article
container_title Journal of Porous Media
container_volume 22
container_issue 8
container_start_page 987
publishDate 2019
institution Swansea University
issn 1091-028X
doi_str_mv 10.1615/jpormedia.2019026005
publisher Begell House
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 Using high-speed imaging and digital image correlation, we studied the granular motion and deformation caused by pneumatic fracturing of a wet granular packing in a Hele–Shaw cell subject to a constant injection of air. These pneumatic fractures form patterns of conductive pathways whose form is determined by a complex interplay between pressure, capillary, frictional, and viscous forces. Saturated granular media is pneumatically fractured in this fashion in multiple natural, geo-engineering, and industrial processes. We outline the characteristics of these fracture networks and then examine individual fracture growth events and the local motion of grains with a time resolution of milliseconds. We observe intermittent frictional behavior during these rapid fracturing events, describe an average velocity profile for the motion of grains during fracturing, and illustrate an average compaction profile as a result of these deformations.
published_date 2019-09-30T04:04:51Z
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score 11.016593

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