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Fluidification d'un empilement granulaire par des ultrasons de puissance focalisés
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lidon, Pierre Taberlet, Nicolas Manneville, S. 'ebastien |
| Copyright Year | 2015 |
| Abstract | In this study, we report experimental results on the dynamics of a granular packing submitted to high-intensity focused ultrasound. Acoustic radiation pressure triggers remotely local rearrangements within the pile and can even induce large-scale flows. The observed fluidization process appears to be intermittent within a range of acoustic pressure, and hysteretic when pressure is cycled. Experimental results are qualitatively reproduced by numerical simulation and a simple heuristic model based on trap model. Mots clefs : Empilement granulaire, fluidification, ultrasons de puissance, pression de radiation acoustique, intermittence, hystérésis, dynamique moléculaire, modèle des pièges |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://documents.irevues.inist.fr/bitstream/handle/2042/57008/68927.pdf?sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
