Gravity-Driven Monodisperse Avalanches: Inertial- to Frictional-Dominated Flow
Bartali R, Nahmad-Molinari Y, Rodríguez-Liñán GM, Torres Cisneros LA, Pérez-Ángel G (2020)
Publication Language: English
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 53
Pages Range: 3507-3520
Journal Issue: 8
DOI: 10.1007/s00603-020-02144-w
Abstract
A set of experiments on avalanches—each one with a single particle size (monodisperse)—is presented. Experiments were performed with different flume lengths, inclinations, and roughness, for different avalanching masses and particle sizes. A transition from an inertial behavior to a frictional dominated one is observed at a particle size of 1 mm, in all cases. Taking into account the energy dissipated during each step of the avalanching process, we inferred a scaling function that allowed us to collapse all experimental data into a single curve. The transition from an inertial to a frictional dominated regime is explained in terms of the increasing number of particles per unit mass with decreasing particle size, for which the external shear activates a growing number of internal degrees of freedom in which the energy is dissipated. Molecular dynamic numerical simulations showed consistency with the suggested hypothesis of higher dissipated power for larger number of avalanching particles (smaller grain size).
Authors with CRIS profile
Involved external institutions
Autonomous University of San Luis Potosí / Universidad Autónoma de San Luis Potosí (UASLP)
Mexico (MX)
Center for Research and Advanced Studies of the National Polytechnic Institute / Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN)
Mexico (MX)
National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM)
Mexico (MX)
Mexico (MX)
Center for Research and Advanced Studies of the National Polytechnic Institute / Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN)
Mexico (MX)
National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM)
Mexico (MX)
How to cite
APA:
Bartali, R., Nahmad-Molinari, Y., Rodríguez-Liñán, G.M., Torres Cisneros, L.A., & Pérez-Ángel, G. (2020). Gravity-Driven Monodisperse Avalanches: Inertial- to Frictional-Dominated Flow. Rock Mechanics and Rock Engineering, 53(8), 3507-3520. https://doi.org/10.1007/s00603-020-02144-w
MLA:
Bartali, Roberto, et al. "Gravity-Driven Monodisperse Avalanches: Inertial- to Frictional-Dominated Flow." Rock Mechanics and Rock Engineering 53.8 (2020): 3507-3520.
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