Rising and sinking intruders in dense granular flows

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 pressure, and gravity. A simple buoyancy-like scaling law is recovered (analogous to that in fluids), but with a scal...

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Bibliographic Details
Main Authors: Lu Jing, Julio M. Ottino, Richard M. Lueptow, Paul B. Umbanhowar
Format: Article
Language:English
Published: American Physical Society 2020-06-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.022069