Advances in modeling dense granular media

K Kamrin, KM Hill, DI Goldman… - Annual Review of Fluid …, 2024‏ - annualreviews.org
This review focuses on how the modeling of dense granular media has advanced over the
last 15 years. The jum**-off point of our review is the μ (I) rheology for dry granular flow …

Modeling segregation in granular flows

PB Umbanhowar, RM Lueptow… - Annual review of …, 2019‏ - annualreviews.org
Accurate continuum models of flow and segregation of dense granular flows are now
possible. This is the result of extensive comparisons, over the last several years, of computer …

[HTML][HTML] Fast, flexible particle simulations—an introduction to MercuryDPM

T Weinhart, L Orefice, M Post… - Computer physics …, 2020‏ - Elsevier
We introduce the open-source package MercuryDPM, which we have been develo** over
the last few years. MercuryDPM is a code for discrete particle simulations. It simulates the …

Coupling rheology and segregation in granular flows

T Barker, M Rauter, ESF Maguire… - Journal of Fluid …, 2021‏ - cambridge.org
During the last fifteen years there has been a paradigm shift in the continuum modelling of
granular materials; most notably with the development of rheological models, such as the …

[HTML][HTML] Concurrent multi-scale modeling of granular materials: Role of coarse-graining in FEM-DEM coupling

H Cheng, AR Thornton, S Luding, AL Hazel… - Computer Methods in …, 2023‏ - Elsevier
The finite element method (FEM) is commonly used for modeling continuum media, while
particle simulation methods like the so-called discrete element method (DEM) are used for …

How particle shape affects granular segregation in industrial and geophysical flows

FD Cúñez, D Patel, RC Glade - Proceedings of the National Academy of …, 2024‏ - pnas.org
Industrial and environmental granular flows commonly exhibit a phenomenon known as
“granular segregation,” in which grains separate according to physical characteristics (size …

Particle size segregation in granular mass flows with different ambient fluids

GGD Zhou, KFE Cui, L **g, T Zhao… - Journal of …, 2020‏ - Wiley Online Library
Size segregation, which is a robust feature of sheared granular mixtures and geophysical
mass flow deposits, is found to diminish in the presence of a viscous fluid. We study this …

Drag force in granular shear flows: regimes, scaling laws and implications for segregation

L **g, JM Ottino, PB Umbanhowar… - Journal of Fluid …, 2022‏ - cambridge.org
The drag force on a spherical intruder in dense granular shear flows is studied using
discrete element method simulations. Three regimes of the intruder dynamics are observed …

Rising and sinking intruders in dense granular flows

L **g, JM Ottino, RM Lueptow, PB Umbanhowar - Physical Review Research, 2020‏ - APS
We computationally determine the net bed force on single spherical intruder particles in
dense granular flows as a function of particle size, particle density, shear rate, overburden …

A unified description of gravity-and kinematics-induced segregation forces in dense granular flows

L **g, JM Ottino, RM Lueptow… - Journal of Fluid …, 2021‏ - cambridge.org
Particle segregation is common in natural and industrial processes involving flowing
granular materials. Complex, and seemingly contradictory, segregation phenomena have …