| Issue |
Europhys. Lett.
Volume 43, Number 1, July I 1998
|
|
|---|---|---|
| Page(s) | 1 - 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i1998-00309-6 | |
| Published online | 01 September 2002 | |
Microscopic model for granular stratification and segregation
1
PMMH, Ecole Supérieure de Physique et de Chimie
Industielles 10 rue Vauquelin,
75231 Paris Cedex 05, France
2
Center for Polymer Studies, Physics Department, Boston
University Boston, MA 02215 USA
3
Institute for Computer Applications 1, University of Stuttgart,
Pfaffenwaldring 27, 70569 Stuttgart, Germany
Received:
11
November
1997
Accepted:
11
May
1998
We study segregation and stratification of mixtures of grains differing in size, shape and material properties poured into two-dimensional silos using a microscopic lattice model for surface flows of grains. The model incorporates the dissipation of energy in collisions between rolling and static grains and an energy barrier describing the geometrical asperities of the grains. We study the phase diagram of the different morphologies predicted by the model as a function of the two parameters. We find regions of segregation and stratification, in agreement with experimental finding, as well as a region of total mixing.
PACS: 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion / 46.10.+z – Mechanics of discrete systems / 64.75.+g – Solubility, segregation, and mixing; phase separation
© EDP Sciences, 1998
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.