Rheology of weakly vibrated granular media

Geert H. Wortel; Joshua A. Dijksman; Martin Van Hecke

doi:10.1103/PhysRevE.89.012202

Rheology of weakly vibrated granular media

Geert H. Wortel, Joshua A. Dijksman, Martin Van Hecke

Research output: Contribution to journal › Article › Academic › peer-review

24 Citations (Scopus)

Abstract

We probe the rheology of weakly vibrated granular flows as function of flow rate, vibration strength, and pressure by performing experiments in a vertically vibrated split-bottom shear cell. For slow flows, we establish the existence of a vibration-dominated granular flow regime, where the driving stresses smoothly vanish as the driving rate is diminished. We distinguish three qualitatively different vibration-dominated rheologies, most strikingly a regime where the shear stresses no longer are proportional to the pressure.

Original language	English
Article number	012202
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	89
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevE.89.012202
Publication status	Published - 15 Jan 2014
Externally published	Yes

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10.1103/PhysRevE.89.012202Licence: CC BY

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Rheology of weakly vibrated granular media

Abstract

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