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Communication Dans Un Congrès Année : 2023

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

Résumé

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.
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Dates et versions

hal-04189785 , version 1 (29-08-2023)

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Oscar Polanía, Nicolás Estrada, Mathieu Renouf, Emilien Azéma, Miguel Cabrera. Granular column collapse: The role of particle size polydispersity on the velocity and runout. 8th International Conference on Debris Flow Hazard Mitigation (DFHM8), Jun 2023, Turin, Italy. pp.02017, ⟨10.1051/e3sconf/202341502017⟩. ⟨hal-04189785⟩
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