Microstructure evolution in density relaxation by tapping
Abstract
The density relaxation phenomenon is modeled using both Monte Carlo and discrete element simulations to investigate the effects of regular taps applied to a vessel having a planar floor filled with monodisperse spheres. Results suggest the existence of a critical tap intensity which produces a maximum bulk solids fraction. We find that the mechanism responsible for the relaxation phenomenon is an evolving ordered packing structure propagating upwards from the plane floor.
- Publication:
-
Physical Review E
- Pub Date:
- June 2010
- DOI:
- Bibcode:
- 2010PhRvE..81f1301R
- Keywords:
-
- 45.70.-n;
- 05.65.+b;
- 02.70.Ns;
- 81.05.Rm;
- Granular systems;
- Self-organized systems;
- Molecular dynamics and particle methods;
- Porous materials;
- granular materials