Granular flow fluctuations in a conical hopper
In this article, we present simulations of 3D hopper flows through conical hoppers, with a focus on time fluctuations of flow-related quantities (velocity, coordination number and solid fraction). Dedicated post-processing techniques are used to obtain local and yet statistically meaningful measurem...
| 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/201714003030 |
| _version_ | 1819096198098714624 |
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| author | Mollon Guilhem Zhao Jidong |
| author_facet | Mollon Guilhem Zhao Jidong |
| author_sort | Mollon Guilhem |
| collection | DOAJ |
| description | In this article, we present simulations of 3D hopper flows through conical hoppers, with a focus on time fluctuations of flow-related quantities (velocity, coordination number and solid fraction). Dedicated post-processing techniques are used to obtain local and yet statistically meaningful measurements of these quantities. Simulations show that the fluctuations that were already observed in 2D hopper flows are still present in 3D. A parametric study also demonstrates that the frequency of the fluctuations is strongly related to the stiffness parameter of the contact law used in the simulations. |
| first_indexed | 2024-12-21T23:55:23Z |
| format | Article |
| id | doaj.art-4b20b4686f824ac8af9eb13859012867 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-21T23:55:23Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-4b20b4686f824ac8af9eb138590128672022-12-21T18:45:50ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400303010.1051/epjconf/201714003030epjconf162096Granular flow fluctuations in a conical hopperMollon Guilhem0Zhao Jidong1LaMCoS, INSA Lyon, UMR 5259, Université de Lyon, CNRSDepartment of Civil and Environmental Engineering, Hong Kong University of Science and TechnologyIn this article, we present simulations of 3D hopper flows through conical hoppers, with a focus on time fluctuations of flow-related quantities (velocity, coordination number and solid fraction). Dedicated post-processing techniques are used to obtain local and yet statistically meaningful measurements of these quantities. Simulations show that the fluctuations that were already observed in 2D hopper flows are still present in 3D. A parametric study also demonstrates that the frequency of the fluctuations is strongly related to the stiffness parameter of the contact law used in the simulations.https://doi.org/10.1051/epjconf/201714003030 |
| spellingShingle | Mollon Guilhem Zhao Jidong Granular flow fluctuations in a conical hopper EPJ Web of Conferences |
| title | Granular flow fluctuations in a conical hopper |
| title_full | Granular flow fluctuations in a conical hopper |
| title_fullStr | Granular flow fluctuations in a conical hopper |
| title_full_unstemmed | Granular flow fluctuations in a conical hopper |
| title_short | Granular flow fluctuations in a conical hopper |
| title_sort | granular flow fluctuations in a conical hopper |
| url | https://doi.org/10.1051/epjconf/201714003030 |
| work_keys_str_mv | AT mollonguilhem granularflowfluctuationsinaconicalhopper AT zhaojidong granularflowfluctuationsinaconicalhopper |