Transients in pressure-imposed shearing of dense granular suspensions
Granular materials whether dry or immersed in fluid show dilation or compaction depending upon the initial conditions, solid fraction and normal stress. Here we probe the transient response of a dense granular suspension subjected to change of applied normal stress under simple shear. In this aim, n...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_09009.pdf |
| _version_ | 1819127725840924672 |
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| author | Athani Shivakumar Forterre Yoel Metzger Bloen Mari Romain |
| author_facet | Athani Shivakumar Forterre Yoel Metzger Bloen Mari Romain |
| author_sort | Athani Shivakumar |
| collection | DOAJ |
| description | Granular materials whether dry or immersed in fluid show dilation or compaction depending upon the initial conditions, solid fraction and normal stress. Here we probe the transient response of a dense granular suspension subjected to change of applied normal stress under simple shear. In this aim, normal-stress-imposed discrete element particle simulations are developed considering the contributions arising from the drag induced on the particles by fluid phase. These pressure-imposed simulations show transient behaviors of dense granular suspensions such as dilation or compaction before reaching a steady state following the µ(J) rheology. Less expectedly, the transient behavior, in particular the height of the system as a function of applied strain, can also be described by assuming that the system follows the steady µ(J) rheology at all times. |
| first_indexed | 2024-12-22T08:16:30Z |
| format | Article |
| id | doaj.art-70ae292809e54e8da8fbd7b44403214b |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-22T08:16:30Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-70ae292809e54e8da8fbd7b44403214b2022-12-21T18:32:53ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490900910.1051/epjconf/202124909009epjconf_pg2021_09009Transients in pressure-imposed shearing of dense granular suspensionsAthani Shivakumar0Forterre Yoel1Metzger Bloen2Mari Romain3Univ. Grenoble-Alpes, CNRS, LIPhyAix Marseille University, CNRS, Institut Universitaire des Systèmes Thermiques et IndustrielsAix Marseille University, CNRS, Institut Universitaire des Systèmes Thermiques et IndustrielsUniv. Grenoble-Alpes, CNRS, LIPhyGranular materials whether dry or immersed in fluid show dilation or compaction depending upon the initial conditions, solid fraction and normal stress. Here we probe the transient response of a dense granular suspension subjected to change of applied normal stress under simple shear. In this aim, normal-stress-imposed discrete element particle simulations are developed considering the contributions arising from the drag induced on the particles by fluid phase. These pressure-imposed simulations show transient behaviors of dense granular suspensions such as dilation or compaction before reaching a steady state following the µ(J) rheology. Less expectedly, the transient behavior, in particular the height of the system as a function of applied strain, can also be described by assuming that the system follows the steady µ(J) rheology at all times.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_09009.pdf |
| spellingShingle | Athani Shivakumar Forterre Yoel Metzger Bloen Mari Romain Transients in pressure-imposed shearing of dense granular suspensions EPJ Web of Conferences |
| title | Transients in pressure-imposed shearing of dense granular suspensions |
| title_full | Transients in pressure-imposed shearing of dense granular suspensions |
| title_fullStr | Transients in pressure-imposed shearing of dense granular suspensions |
| title_full_unstemmed | Transients in pressure-imposed shearing of dense granular suspensions |
| title_short | Transients in pressure-imposed shearing of dense granular suspensions |
| title_sort | transients in pressure imposed shearing of dense granular suspensions |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_09009.pdf |
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