Internal Waves Control Bulk Flow in Silos
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917157388943360 |
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| author | Luce, David Gans, Adrien Vandewalle, Nicolas de Richter, Sébastien Kiesgen |
| author_facet | Luce, David Gans, Adrien Vandewalle, Nicolas de Richter, Sébastien Kiesgen |
| contents | We experimentally measure paticle acceleration within the bulk during the discharge of a granular silo. We highlight the existence of a deceleration wave emerging at the outlet level near the dead zone and propagates toward the top of the medium. The wave emission frequency is extracted from spatiotemporal diagrams of the Eulerian instantaneous acceleration profiles. Surprisingly, we find that this frequency decreases with the cohesion of the medium and is independent of the outlet size. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_17686 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Internal Waves Control Bulk Flow in Silos Luce, David Gans, Adrien Vandewalle, Nicolas de Richter, Sébastien Kiesgen Soft Condensed Matter Fluid Dynamics We experimentally measure paticle acceleration within the bulk during the discharge of a granular silo. We highlight the existence of a deceleration wave emerging at the outlet level near the dead zone and propagates toward the top of the medium. The wave emission frequency is extracted from spatiotemporal diagrams of the Eulerian instantaneous acceleration profiles. Surprisingly, we find that this frequency decreases with the cohesion of the medium and is independent of the outlet size. |
| title | Internal Waves Control Bulk Flow in Silos |
| topic | Soft Condensed Matter Fluid Dynamics |
| url | https://arxiv.org/abs/2512.17686 |