Drag of a cylindrical object in a two-dimensional granular environment
The drag of a cylindrical object in a two-dimensional granular environment is numerically studied. It is found that the drag law is fitted by the sum of the yield force and the dynamic force, the latter of which is reproduced by a simple collision model. The angular dependence of the radial stress o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
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_03033.pdf |
| _version_ | 1818858863403728896 |
|---|---|
| author | Kubota Takumi Ishikawa Haruto Takada Satoshi |
| author_facet | Kubota Takumi Ishikawa Haruto Takada Satoshi |
| author_sort | Kubota Takumi |
| collection | DOAJ |
| description | The drag of a cylindrical object in a two-dimensional granular environment is numerically studied. It is found that the drag law is fitted by the sum of the yield force and the dynamic force, the latter of which is reproduced by a simple collision model. The angular dependence of the radial stress on the surface of the object is given by the Gaussian below the yield force. The probability of the velocity drops of the object is investigated above the yield force, where this probability is independent of the packing fraction and the drag force. |
| first_indexed | 2024-12-19T09:03:03Z |
| format | Article |
| id | doaj.art-3cf377d1f2a84fcdacc3a58a20885a2f |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T09:03:03Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-3cf377d1f2a84fcdacc3a58a20885a2f2022-12-21T20:28:26ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490303310.1051/epjconf/202124903033epjconf_pg2021_03033Drag of a cylindrical object in a two-dimensional granular environmentKubota Takumi0Ishikawa Haruto1Takada SatoshiDepartment of Mechanical Systems Engineering, Tokyo University of Agriculture and TechnologyDepartment of Mechanical Systems Engineering, Tokyo University of Agriculture and TechnologyThe drag of a cylindrical object in a two-dimensional granular environment is numerically studied. It is found that the drag law is fitted by the sum of the yield force and the dynamic force, the latter of which is reproduced by a simple collision model. The angular dependence of the radial stress on the surface of the object is given by the Gaussian below the yield force. The probability of the velocity drops of the object is investigated above the yield force, where this probability is independent of the packing fraction and the drag force.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03033.pdf |
| spellingShingle | Kubota Takumi Ishikawa Haruto Takada Satoshi Drag of a cylindrical object in a two-dimensional granular environment EPJ Web of Conferences |
| title | Drag of a cylindrical object in a two-dimensional granular environment |
| title_full | Drag of a cylindrical object in a two-dimensional granular environment |
| title_fullStr | Drag of a cylindrical object in a two-dimensional granular environment |
| title_full_unstemmed | Drag of a cylindrical object in a two-dimensional granular environment |
| title_short | Drag of a cylindrical object in a two-dimensional granular environment |
| title_sort | drag of a cylindrical object in a two dimensional granular environment |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03033.pdf |
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