https://doi.org/10.1051/epjconf/201714003029
Force fluctuations experienced by a boundary wall subjected to a granular flow in two distinct systems
1 Univ. Grenoble-Alpes, Irstea, ETGR, 38402 St-Martin d’Hères, France
2 Univ. Grenoble-Alpes, CNRS, 3SR, F-38000 Grenoble, France
* e-mail: francois.kneib@irstea.fr
** e-mail: thierry.faug@irstea.fr
Published online: 30 June 2017
The present paper describes a numerical study of force fluctuations experienced by a boundary wall subjected to a granular flow on two distinct systems, namely a lid-driven cavity and an immersed wall system. Though the two systems exhibit different time-averaged dynamics, the force fluctuations experienced by the boundary wall show robust features in terms of the shapes of the probability density distributions and auto-correlation functions, under a wide range of boundary confinement pressure and shearing velocity imparted to the granular flow at the top of the system. This study identifies the key link between the grain-wall force fluctuations and the μ(I)–rheology while moving from quasistatic to inertial regime.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
