Numerical analysis of granular flows in a silo bed on flow regime characterization. [PDF]
PLoS ONE, 2015 The flow characteristics of a gravity-driven dense granular flow in a granular bed with a contracted drainage orifice are studied by using discrete element method and quantitative analysis.
Xingtuan Yang +3 more
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Additive rheology of complex granular flows [PDF]
Nature Communications, 2020 Granular materials are abundant in nature, but we haven’t fully understood their rheological properties as complex interactions between particles are involved. Here, Vo et al.
Thanh Trung Vo +4 more
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Measuring jumps during granular chute-flows using X-ray radiography [PDF]
EPJ Web of Conferences, 2021 The present paper describes laboratory tests on steady granular flows down a smooth chute using X-ray radiography. By using an original granular chute set-up with a gate at its end, standing discontinuites in height, velocity and density, namely jumps ...
Méjean Ségolène +3 more
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Shear-induced diffusion: the role of granular clusters [PDF]
EPJ Web of Conferences, 2021 This paper is concerned with the physical mechanisms controlling shear-induced diffusion in dense granular flows. The starting point is that of the granular random walk occurring in diluted granular flows, which underpins Bagnold’s scaling relating the ...
Macaulay Matthew, Rognon Pierre
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Viscosity of cohesive granular flows [PDF]
Soft Matter, 2021 Cohesion affects the microstructural mechanisms of momentum transport in granular flows, yielding a phase diagram that unifies several flowing regimes.
Matthew Macaulay, Pierre Rognon
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Keynote lecture. Granular flows [PDF]
E3S Web of Conferences, 2023 Our understanding of granular flows has progressed considerably over the past two decades. In this talk, I will first review the advances made in the rheology of dense granular media based on the concept of pressure-imposed rheology, discussing the ...
Pouliquen Olivier
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Keynote lecture. The planar setup: A window through the complex interactions in granular flows [PDF]
E3S Web of Conferences, 2023 Granular flows are a complex process, involving a wide range of grain sizes, materials, varied viscous fluids, among others. For this reason, the simulation of granular flows requires a certain level of simplification, allowing the isolated study of its ...
Cabrera Miguel +2 more
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Object Impacted and Transported by Dry Granular Flow: 3D MPM-SDEM [PDF]
E3S Web of Conferences, 2023 Granular geophysical flows pose a significant threat to human lives and infrastructure in mountainous regions globally. Property and victims impacted by these flows often get carried away and buried.
Ji Wei +2 more
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Granular column collapse: The role of particle size polydispersity on the velocity and runout [PDF]
E3S Web of Conferences, 2023 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.
Polanía Oscar +4 more
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Combined effects of grain size, flow volume and channel width on geophysical flow mobility: three-dimensional discrete element modeling of dry and dense flows of angular rock fragments [PDF]
Solid Earth, 2017 We have carried out new three-dimensional numerical simulations by using a discrete element method (DEM) to study the mobility of dry granular flows of angular rock fragments.
B. Cagnoli, A. Piersanti
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