| Issue |
EPJ Web Conf.
Volume 140, 2017
Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 11006 | |
| Number of page(s) | 4 | |
| Section | Continuum modeling | |
| DOI | https://doi.org/10.1051/epjconf/201714011006 | |
| Published online | 30 June 2017 | |
https://doi.org/10.1051/epjconf/201714011006
Dense, inhomogeneous shearing flows of spheres
1 Dept. of Civil and Environmental Engineering, Politecnico di Milano, 20133 Milano, Italy
2 School of Civil and Environmental Engineering, Cornell University, 14850 Ithaca, NY, USA
* Corresponding author: diego.berzi@polimi.it
Published online: 30 June 2017
We make use of recent extensions of kinetic theory of granular gases to include the role of particle stiffness in collisions to deal with pressure-imposed shearing flows between bumpy planes in relative motion, in which the solid volume fraction and the intensity of the velocity fluctuations are not uniformly distributed in the domain. As in previous numerical simulations on the flow of disks in an annular shear cell, we obtain an exponential velocity profile in the region where the volume fraction exceeds the critical value at which a rate-independent contribution to the stresses arises. We also show that the thickness of the inertial region, where the solid volume fraction is less than the critical value, and the shear stress at the moving boundary are determined functions of the relative velocity of the boundaries.
© 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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.