| Issue |
EPJ Web Conf.
Volume 249, 2021
Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 03028 | |
| Number of page(s) | 4 | |
| Section | Granular Flow | |
| DOI | https://doi.org/10.1051/epjconf/202124903028 | |
| Published online | 07 June 2021 | |
https://doi.org/10.1051/epjconf/202124903028
Evidence of a non-local ø(I) response
1
Chemical and Process Engineering Department, University of Canterbury, Christchurch, New Zealand
2
School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
* e-mail: daniel.holland@canterbury.ac.nz
Published online: 7 June 2021
Granular dilatancy has been previously characterised through a simple linear relationship between the packing fraction and dimensionless shear rate. However, this relationship was developed for granular flows in a simple shear cell geometry. Here we examine inertial volume changes in a shear cell with gravity, a vertical chute, and a pseudo-2D hopper. In so doing, we show that the packing fraction displays both a local and non-local response, analogous to what is typically observed for the stress ratio µ.
A video is available at https://doi.org/10.48448/sq9p-3r82
© 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.
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