Numerical insight into the micromechanics of jet erosion of a cohesive granular material
Here we investigate the physical mechanisms behind the surface erosion of a cohesive granular soil induced by an impinging jet by means of numerical simulations coupling fluid and grains at the microscale. The 2D numerical model combines the Discrete Element and Lattice Boltzmann methods (DEM-LBM) a...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201714015017 |
| _version_ | 1819125017242238976 |
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| author | Cuéllar Pablo Benseghier Zeyd Luu Li-Hua Bonelli Stéphane Delenne Jean-Yves Radjaï Farhang Philippe Pierre |
| author_facet | Cuéllar Pablo Benseghier Zeyd Luu Li-Hua Bonelli Stéphane Delenne Jean-Yves Radjaï Farhang Philippe Pierre |
| author_sort | Cuéllar Pablo |
| collection | DOAJ |
| description | Here we investigate the physical mechanisms behind the surface erosion of a cohesive granular soil induced by an impinging jet by means of numerical simulations coupling fluid and grains at the microscale. The 2D numerical model combines the Discrete Element and Lattice Boltzmann methods (DEM-LBM) and accounts for the granular cohesion with a contact model featuring a paraboloidal yield surface. Here we review first the hydrodynamical conditions imposed by the fluid jet on a solid granular packing, turning then the attention to the impact of cohesion on the erosion kinetics. Finally, the use of an additional subcritical debonding damage model based on the work of Silvani and co-workers provides a novel insight into the internal solicitation of the cohesive granular sample by the impinging jet. |
| first_indexed | 2024-12-22T07:33:27Z |
| format | Article |
| id | doaj.art-473acf9ad2664b96a1796bea558dc26d |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-22T07:33:27Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-473acf9ad2664b96a1796bea558dc26d2022-12-21T18:33:57ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011401501710.1051/epjconf/201714015017epjconf162395Numerical insight into the micromechanics of jet erosion of a cohesive granular materialCuéllar PabloBenseghier Zeyd0Luu Li-Hua1Bonelli Stéphane2Delenne Jean-Yves3Radjaï FarhangPhilippe Pierre4IRSTEA, UR RECOVERIRSTEA, UR RECOVERIRSTEA, UR RECOVERUMR IATE, INRA – CIRAD - Montpellier SupagroIRSTEA, UR RECOVERHere we investigate the physical mechanisms behind the surface erosion of a cohesive granular soil induced by an impinging jet by means of numerical simulations coupling fluid and grains at the microscale. The 2D numerical model combines the Discrete Element and Lattice Boltzmann methods (DEM-LBM) and accounts for the granular cohesion with a contact model featuring a paraboloidal yield surface. Here we review first the hydrodynamical conditions imposed by the fluid jet on a solid granular packing, turning then the attention to the impact of cohesion on the erosion kinetics. Finally, the use of an additional subcritical debonding damage model based on the work of Silvani and co-workers provides a novel insight into the internal solicitation of the cohesive granular sample by the impinging jet.https://doi.org/10.1051/epjconf/201714015017 |
| spellingShingle | Cuéllar Pablo Benseghier Zeyd Luu Li-Hua Bonelli Stéphane Delenne Jean-Yves Radjaï Farhang Philippe Pierre Numerical insight into the micromechanics of jet erosion of a cohesive granular material EPJ Web of Conferences |
| title | Numerical insight into the micromechanics of jet erosion of a cohesive granular material |
| title_full | Numerical insight into the micromechanics of jet erosion of a cohesive granular material |
| title_fullStr | Numerical insight into the micromechanics of jet erosion of a cohesive granular material |
| title_full_unstemmed | Numerical insight into the micromechanics of jet erosion of a cohesive granular material |
| title_short | Numerical insight into the micromechanics of jet erosion of a cohesive granular material |
| title_sort | numerical insight into the micromechanics of jet erosion of a cohesive granular material |
| url | https://doi.org/10.1051/epjconf/201714015017 |
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