https://doi.org/10.1051/epjconf/202124906002
Effect of grain shape on the dynamics of granular materials in 2D rotating drum
GRASP, Department of Physics, ULiège, B-4000 Liège, Belgium.
* e-mail: n.preudhomme@uliege.be
Published online: 7 June 2021
We experimentally investigate the effect of the grain shape on the flow of granular material. The grain shape is modified to highlight the effect of grain circularity on granular flow in a 2D rotating drum. Using a laser cutter, we create particles with decreasing circularity. We observe that the effect of grain shape depends on the rotation speed of the drum. For high rotation speed, granular flow is influenced by the packing’s dilatancy whereas, at low rotation speed, packing fraction seems to influence flowing dynamics. We link these two measurements to grain shape in order to explain its effect on granular flow.
A video is available at https://doi.org/10.48448/md56-jy83
© The Authors, published by EDP Sciences, 2021
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.
