Persistent structures in a three-dimensional dynamical system with flowing and non-flowing regions

Autor: Zafir Zaman, Mengqi Yu, Paul P. Park, Julio M. Ottino, Richard M. Lueptow, Paul B. Umbanhowar

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)

Understanding mixing in yield stress materials, such as paint and sand, is complicated due to the coexistence of solid-like and fluid-like regimes. Zaman et al. examine mixing in a granular material in three dimensions and find persistent complex non

Externí odkaz: https://doaj.org/article/a5442a13436d4dd1b279adcf3f9ad496

Influence of rough and smooth walls on macroscale flows in tumblers

Autor: Nathalie Thomas, Zafir Zaman, Umberto D'Ortona, Richard M. Lueptow

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2015, 92 (6), pp.062202. ⟨10.1103/PhysRevE.92.062202⟩
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2015, 92 (6), pp.062202. ⟨10.1103/PhysRevE.92.062202⟩

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 geometrically smooth wall. An implicit assumption is that the resulting rou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::740679aee110bec1f7e32fc958d2ed3e
https://hal.archives-ouvertes.fr/hal-01306604/file/artmonopreV2.pdf