182 citations · 810 across the 37 of their papers we have counts for
38 papers
Percolation of a rod-like particle in a static bed of spheres: trapping and passing
Juan C. Petit, Julio M. Ottino, Richard M. Lueptow +1
We numerically investigate percolation of independent frictionless glued-sphere rod-like particles under gravity through a disordered static bed of larger spheres. We identify two…
Percolation of a cohesive fine particle in a static bed
Jizhi Zhang, Qiong Zhang, Julio M. Ottino +2
Percolation of fine particles (fines) in a static bed of larger particles is central to many industrial and natural processes. Non-cohesive fines either pass through the bed or bec…
Fine Particle Percolation Dynamics in Porous Media
Dhairya R. Vyas, Richard M. Lueptow, Julio M. Ottino +1
The influences of restitution coefficient, , inter-particle friction, , and size ratio, , on gravity-driven percolation of fine particles through static beds of larger p…
Improved Velocity-Verlet Algorithm for the Discrete Element Method
Dhairya R. Vyas, Julio M. Ottino, Richard M. Lueptow +1
The Discrete Element Method is widely employed for simulating granular flows, but conventional integration techniques may produce unphysical results for simulations with static fri…
Granular segregation across flow geometries: a closure model for the particle segregation velocity
Yifei Duan, Lu Jing, Paul B. Umbanhowar +2
Predicting particle segregation has remained challenging due to the lack of a general model for the segregation velocity that is applicable across a range of granular flow geometri…
Lift Force on a Moving Intruder in Granular Shear Flow
Hantao He, Qiong Zhang, Julio M. Ottino +2
Lift and drag forces on moving intruders in granular materials are of fundamental interest. While the drag force on an intruder in granular flow has been studied, the few studies c…