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Triggering avalanches by transverse perturbations in a rotating drum
We study the role of small-scale perturbations in the onset of avalanches in a rotating drum in the stick-slip regime. By vibrating the system along the axis of rotation with an amplitude orders of magnitude smaller than the particles’ diameter, we found that the order parameter that properly descri...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8260778/ https://www.ncbi.nlm.nih.gov/pubmed/34230549 http://dx.doi.org/10.1038/s41598-021-93422-2 |
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author | Salinas, Vicente Quiñinao, Cristóbal González, Sebastián Castillo, Gustavo |
author_facet | Salinas, Vicente Quiñinao, Cristóbal González, Sebastián Castillo, Gustavo |
author_sort | Salinas, Vicente |
collection | PubMed |
description | We study the role of small-scale perturbations in the onset of avalanches in a rotating drum in the stick-slip regime. By vibrating the system along the axis of rotation with an amplitude orders of magnitude smaller than the particles’ diameter, we found that the order parameter that properly describes the system is the kinetic energy. We also show that, for high enough frequencies, the onset of the avalanche is determined by the amplitude of the oscillation, contrary to previous studies that showed that either acceleration or velocity was the governing parameter. Finally, we present a theoretical model that explains the transition between the continuous and discrete avalanche regimes as a supercritical Hopf bifurcation. |
format | Online Article Text |
id | pubmed-8260778 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82607782021-07-08 Triggering avalanches by transverse perturbations in a rotating drum Salinas, Vicente Quiñinao, Cristóbal González, Sebastián Castillo, Gustavo Sci Rep Article We study the role of small-scale perturbations in the onset of avalanches in a rotating drum in the stick-slip regime. By vibrating the system along the axis of rotation with an amplitude orders of magnitude smaller than the particles’ diameter, we found that the order parameter that properly describes the system is the kinetic energy. We also show that, for high enough frequencies, the onset of the avalanche is determined by the amplitude of the oscillation, contrary to previous studies that showed that either acceleration or velocity was the governing parameter. Finally, we present a theoretical model that explains the transition between the continuous and discrete avalanche regimes as a supercritical Hopf bifurcation. Nature Publishing Group UK 2021-07-06 /pmc/articles/PMC8260778/ /pubmed/34230549 http://dx.doi.org/10.1038/s41598-021-93422-2 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Salinas, Vicente Quiñinao, Cristóbal González, Sebastián Castillo, Gustavo Triggering avalanches by transverse perturbations in a rotating drum |
title | Triggering avalanches by transverse perturbations in a rotating drum |
title_full | Triggering avalanches by transverse perturbations in a rotating drum |
title_fullStr | Triggering avalanches by transverse perturbations in a rotating drum |
title_full_unstemmed | Triggering avalanches by transverse perturbations in a rotating drum |
title_short | Triggering avalanches by transverse perturbations in a rotating drum |
title_sort | triggering avalanches by transverse perturbations in a rotating drum |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8260778/ https://www.ncbi.nlm.nih.gov/pubmed/34230549 http://dx.doi.org/10.1038/s41598-021-93422-2 |
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