Skip to Main content Skip to Navigation
Journal articles

Rheological behavior of vibrated bimodal granular suspensions: a free volume approach

Abstract : In this paper, we investigate the dependence of the viscosity of vibrated bidisperse granular suspensions of spherical particles on the relative fraction of the two populations. At the same total volume fraction I center dot, the viscosity of the bidisperse suspension is lower than that of a monodisperse suspension. A unified viscosity model is derived using an effective free volume approach based on the definition of an equivalent mean diameter and a maximum packing fraction, both depending on the fraction of large particles xi. The resulting model accounts for the viscosity of the suspending fluid eta (f) , the amplitude A, and the frequency f of the vibrations, for a constant ratio of the diameters of the beads lambda = 5.3 and a fixed value of the total volume fraction I center dot a parts per thousand 0.61. It led to a general equation describing both the rheology of monodisperse and bidisperse suspensions.
Document type :
Journal articles
Complete list of metadata

https://hal.univ-lorraine.fr/hal-01267206
Contributor : Lrgp Ul <>
Submitted on : Thursday, February 4, 2016 - 10:10:30 AM
Last modification on : Saturday, April 24, 2021 - 6:40:05 PM

Identifiers

Citation

Caroline Hanotin, Sebastien Kiesgen Richter, Laurent J. Michot, Philippe Marchal. Rheological behavior of vibrated bimodal granular suspensions: a free volume approach. Rheologica Acta, Springer Verlag, 2015, 54 (4), pp.327-335. ⟨10.1007/s00397-014-0833-8⟩. ⟨hal-01267206⟩

Share

Metrics

Record views

230