https://doi.org/10.1051/epjconf/202124903009
On the broad tails in breaking time distributions of vibrated clogging arches
1
Depto. de Física y Matemática Aplicada, Facultad de Ciencias, Universidad de Navarra, 31080 Pamplona, Spain.
2
Institut Lumière Matière (CNRS & Univ. Lyon 1), 10 rue Ada Byron, 69622 Villeurbanne Cedex, France
* e-mail: angel@unav.es
Published online: 7 June 2021
Flowing grains can clog an orifice by developing arches, an undesirable event in many cases. Several strategies have been put forward to avoid this. One of them is to vibrate the system in order to undo the clogging. Nevertheless, the time taken to break an arch under a constant vibration has a distribution displaying a heavy tail. This can lead to a situation where the average breaking time is not well defined. Moreover, it has been observed in some experiments that these tails tend to flatten for very long times, exacerbating the problem. Here we will review two conceptual frameworks that have been proposed to understand the phenomenon and discuss their physical implications.
A video is available at https://doi.org/10.48448/70fv-hz89
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
