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Communication Dans Un Congrès Année : 2017

Force fluctuations experienced by a boundary wall subjected to a granular flow in two distinct systems

Résumé

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.
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Dates et versions

hal-01997869 , version 1 (29-01-2019)

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François Kneib, Thierry Faug, Frédéric Dufour, Mohamed Naaim. Force fluctuations experienced by a boundary wall subjected to a granular flow in two distinct systems. Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media, Jul 2017, Montpellier, France. ⟨10.1051/epjconf/201714003029⟩. ⟨hal-01997869⟩
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