2023
DOI: 10.1017/jfm.2023.217
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Axisymmetric column collapses of bi-frictional granular mixtures

Abstract: The behaviour of granular column collapses is associated with the dynamics of geohazards, such as debris flows, landslides and pyroclastic flows, yet their underlying physics is still not well understood. In this paper, we explore granular column collapses using the sphero-polyhedral discrete element method, where the system contains two types of particles with different frictional properties. We impose three different mixing ratios and multiple different particle frictional coefficients, which lead to differe… Show more

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Cited by 3 publications
(1 citation statement)
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“…Man et al [85] proposed a correction factor for the initial aspect ratio based on the frictional coefficient and initial volume fraction. In other work of Man et al [90], they simulated a mixture of particles with two different friction coefficients. They found out that the mixing ratio and the contact occurrence probability play a crucial role in determining the run-out distance.…”
Section: Introductionmentioning
confidence: 99%
“…Man et al [85] proposed a correction factor for the initial aspect ratio based on the frictional coefficient and initial volume fraction. In other work of Man et al [90], they simulated a mixture of particles with two different friction coefficients. They found out that the mixing ratio and the contact occurrence probability play a crucial role in determining the run-out distance.…”
Section: Introductionmentioning
confidence: 99%