Non-local rheology in dense granular flows: Revisiting the concept of fluidity

M Bouzid, A Izzet, M Trulsson, E Clément… - The European Physical …, 2015 - Springer
The aim of this article is to discuss the concepts of non-local rheology and fluidity, recently
introduced to describe dense granular flows. We review and compare various approaches …

Well-posed continuum equations for granular flow with compressibility and μ(I)-rheology

T Barker, DG Schaeffer… - Proceedings of the …, 2017 - royalsocietypublishing.org
Continuum modelling of granular flow has been plagued with the issue of ill-posed dynamic
equations for a long time. Equations for incompressible, two-dimensional flow based on the …

Constitutive relations for compressible granular flow in the inertial regime

DG Schaeffer, T Barker, D Tsuji, P Gremaud… - Journal of Fluid …, 2019 - cambridge.org
Granular flows occur in a wide range of situations of practical interest to industry, in our
natural environment and in our everyday lives. This paper focuses on granular flow in the so …

Partial regularisation of the incompressible 𝜇 (I)-rheology for granular flow

T Barker, J Gray - Journal of Fluid Mechanics, 2017 - cambridge.org
In recent years considerable progress has been made in the continuum modelling of
granular flows, in particular the curve, which is inspired by the analysis of the governing …

Compressibility regularizes the 𝜇 (I)-rheology for dense granular flows

J Heyman, R Delannay, H Tabuteau… - Journal of Fluid …, 2017 - cambridge.org
The. Moreover, we show that the ill-posed domain defined by Barker et al.(J. Fluid Mech.,
vol. 779, 2015, pp. 794–818) transforms into a domain where the flow is unstable but …

Phase diagram for inertial granular flows

E DeGiuli, JN McElwaine, M Wyart - Physical Review E, 2016 - APS
Flows of hard granular materials depend strongly on the interparticle friction coefficient μ p
and on the inertial number I, which characterizes proximity to the jamming transition where …

Rheology of dense granular flows for elongated particles

DB Nagy, P Claudin, T Börzsönyi, E Somfai - Physical Review E, 2017 - APS
We study the rheology of dense granular flows for frictionless spherocylinders by means of
3D numerical simulations. As in the case of spherical particles, the effective friction μ is an …

[HTML][HTML] Macro and meso dynamic response of granular materials in ballastless track subgrade for high-speed railway

J Xiao, S Sun, X Zhang, D Zhang, K Wei… - International Journal of …, 2021 - Elsevier
Considering the discrete and stochastic properties of granular materials, a two-dimensional
numerical model was established to study the dynamic behavior of high-speed railway …

Transition from random packing to stable state in a continuously avalanching granular flow

R Han, Z Wang, Q Chen, H Yang, R Li - Advanced Powder Technology, 2022 - Elsevier
We investigate the transition evolution from the initial state with the random packing of the
particles to the stable state in which successive avalanches exhibit consistent characteristics …

Compaction and dilatancy of irregular particles avalanche flow in rotating drum operated in slumping regime

Q Chen, H Yang, R Li, WZ Xiu, R Han, QC Sun… - Powder Technology, 2020 - Elsevier
Considerable amount of experimental work has been performed to elucidate the behavior of
granular flow inside a rotating drum but yet it is not completely understood. Furthermore …