Back to Search Start Over

Packing of wet monodisperse spheres

Authors :
Yixiang Gan
Zhongzheng Wang
Jean-Michel Pereira
The University of Sydney
Laboratoire Navier (NAVIER UMR 8205)
École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel
Source :
Powder Technology, Powder Technology, Elsevier, 2020, 378, pp.60-64. ⟨10.1016/j.powtec.2020.09.074⟩
Publication Year :
2021
Publisher :
Elsevier BV, 2021.

Abstract

International audience; We experimentally investigated the packing of wet monodisperse spheres with controlled falling height. The packing fraction are found to decrease with smaller grain size and free fall heights. A model describing the effects of interparticle force and falling height on packing fraction is developed by introducing a dimensionless length scale, representing the extent of particle rearrangement towards a denser state due to impacts of falling grains. A universal law is observed for both wet particles where capillary forces dominate and dry powders where van der Waals forces govern the packing behaviour. This study deepens the understanding of packing of cohesive spheres and provide a simple experimental method for generating granular media with tailored packing fraction.

Details

ISSN :
00325910
Volume :
378
Database :
OpenAIRE
Journal :
Powder Technology
Accession number :
edsair.doi.dedup.....e820c550fa7427672443d5c85f4c503f
Full Text :
https://doi.org/10.1016/j.powtec.2020.09.074