Dynamics and structures of segregation in a dense, vibrating granular bed.

@article{Sun2006DynamicsAS,
  title={Dynamics and structures of segregation in a dense, vibrating granular bed.},
  author={Jin Sun and Francine Battaglia and Shankar Subramaniam},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2006},
  volume={74 6 Pt 1},
  pages={061307}
}
We study the rise dynamics of a large particle in a granular bed under vertical vibration using molecular dynamics simulations. Systematic variation of the particle properties and external wall friction in the simulations shows that the large particle rising is very sensitive to external wall friction. The dynamical response of the granular bed with wall friction is shown to include an expansion stage and a compression stage within one cycle. With wall friction, large-scale force networks… CONTINUE READING