Granular column collapse: The role of particle size polydispersity on the velocity and runout

Oscar Polanía; Nicolás Estrada; Mathieu Renouf; Emilien Azéma; Miguel Cabrera

doi:10.1051/e3sconf/202341502017

Granular column collapse: The role of particle size polydispersity on the velocity and runout

Oscar Polanía^*, Nicolás Estrada, Mathieu Renouf, Emilien Azéma, Miguel Cabrera

^*Corresponding author for this work

Geo-engineering

Research output: Contribution to journal › Conference article › Scientific › peer-review

1 Citation (Scopus)

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Abstract

Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is a simplified experiment for studying transitional granular flows. Our research focuses on the role that polydispersity has on the velocity and runout distance of dry and immersed granular columns, undergoing a numerical and experimental study. Our results highlight that polydispersity does not have a strong effect on the collapse of dry columns. On the contrary, the collapse sequence of immerse granular columns strongly depend on the polydispersity level.

Original language	English
Article number	02017
Number of pages	3
Journal	E3S Web of Conferences
Volume	415
DOIs	https://doi.org/10.1051/e3sconf/202341502017
Publication status	Published - 2023
Event	8th International Conference on Debris Flow Hazard Mitigation (DFHM8) - Politecnico di Torino, Torino, Italy Duration: 26 Jun 2023 → 29 Jun 2023 http://dfhm8.polito.it/

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Granular column collapse: the role of particle size polydispersity on the velocity and runoutFinal published version, 2.29 MBLicence: CC BY

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title = "Granular column collapse: The role of particle size polydispersity on the velocity and runout",

abstract = "Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is a simplified experiment for studying transitional granular flows. Our research focuses on the role that polydispersity has on the velocity and runout distance of dry and immersed granular columns, undergoing a numerical and experimental study. Our results highlight that polydispersity does not have a strong effect on the collapse of dry columns. On the contrary, the collapse sequence of immerse granular columns strongly depend on the polydispersity level.",

author = "Oscar Polan{\'i}a and Nicol{\'a}s Estrada and Mathieu Renouf and Emilien Az{\'e}ma and Miguel Cabrera",

year = "2023",

doi = "10.1051/e3sconf/202341502017",

language = "English",

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journal = "E3S Web of Conferences",

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TY - JOUR

T1 - Granular column collapse

T2 - 8th International Conference on Debris Flow Hazard Mitigation (DFHM8)

AU - Polanía, Oscar

AU - Estrada, Nicolás

AU - Renouf, Mathieu

AU - Azéma, Emilien

AU - Cabrera, Miguel

PY - 2023

Y1 - 2023

N2 - Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is a simplified experiment for studying transitional granular flows. Our research focuses on the role that polydispersity has on the velocity and runout distance of dry and immersed granular columns, undergoing a numerical and experimental study. Our results highlight that polydispersity does not have a strong effect on the collapse of dry columns. On the contrary, the collapse sequence of immerse granular columns strongly depend on the polydispersity level.

AB - Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is a simplified experiment for studying transitional granular flows. Our research focuses on the role that polydispersity has on the velocity and runout distance of dry and immersed granular columns, undergoing a numerical and experimental study. Our results highlight that polydispersity does not have a strong effect on the collapse of dry columns. On the contrary, the collapse sequence of immerse granular columns strongly depend on the polydispersity level.

UR - https://www.scopus.com/pages/publications/85172030332

U2 - 10.1051/e3sconf/202341502017

DO - 10.1051/e3sconf/202341502017

M3 - Conference article

AN - SCOPUS:85172030332

SN - 2555-0403

VL - 415

JO - E3S Web of Conferences

JF - E3S Web of Conferences

M1 - 02017

Y2 - 26 June 2023 through 29 June 2023

ER -

Granular column collapse: The role of particle size polydispersity on the velocity and runout

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