12 citations · 23 across the 2 of their papers we have counts for
3 papers
Persistent structures in a 3D dynamical system with solid and fluid regions
Zafir Zaman, Mengqi Yu, Paul P. Park +3
Remarkably persistent mixing and non-mixing regions (islands) are observed to coexist in a three-dimensional dynamical system where randomness is expected. The track of an x-ray op…
Influence of Rough and Smooth Walls on Macroscale Flows in Tumblers
Umberto D'Ortona, Nathalie Thomas, Zafir Zaman +1
Walls in discrete element method simulations of granular flows are sometimes modeled as a closely packed monolayer of fixed particles, resulting in a rough wall rather than a geome…
Slow axial drift in three-dimensional granular tumbler flow
Zafir Zaman, Umberto D'Ortona, Paul B. Umbanhowar +2
Models of monodisperse particle flow in partially filled three-dimensional tumblers often assume that flow along the axis of rotation is negligible. We test this assumption, for sp…