Triggering avalanches by transverse perturbations in a rotating drum

Abstract 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 proper...

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Autores principales:	Vicente Salinas, Cristóbal Quiñinao, Sebastián González, Gustavo Castillo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/78870df29bcd493c81ef973c8fcc9796
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spelling	oai:doaj.org-article:78870df29bcd493c81ef973c8fcc97962021-12-02T18:34:06ZTriggering avalanches by transverse perturbations in a rotating drum10.1038/s41598-021-93422-22045-2322https://doaj.org/article/78870df29bcd493c81ef973c8fcc97962021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93422-2https://doaj.org/toc/2045-2322Abstract 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.Vicente SalinasCristóbal QuiñinaoSebastián GonzálezGustavo CastilloNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vicente Salinas Cristóbal Quiñinao Sebastián González Gustavo Castillo Triggering avalanches by transverse perturbations in a rotating drum
description	Abstract 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	article
author	Vicente Salinas Cristóbal Quiñinao Sebastián González Gustavo Castillo
author_facet	Vicente Salinas Cristóbal Quiñinao Sebastián González Gustavo Castillo
author_sort	Vicente Salinas
title	Triggering avalanches by transverse perturbations in a rotating drum
title_short	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_sort	triggering avalanches by transverse perturbations in a rotating drum
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/78870df29bcd493c81ef973c8fcc9796
work_keys_str_mv	AT vicentesalinas triggeringavalanchesbytransverseperturbationsinarotatingdrum AT cristobalquininao triggeringavalanchesbytransverseperturbationsinarotatingdrum AT sebastiangonzalez triggeringavalanchesbytransverseperturbationsinarotatingdrum AT gustavocastillo triggeringavalanchesbytransverseperturbationsinarotatingdrum
_version_	1718377927502987264

Triggering avalanches by transverse perturbations in a rotating drum

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