Dynamic properties of the two-dimensional density-driven segregation

Yao-Dong Feng,Can-Can Liu,Qing-Fan Shi,Gang Sun

Figure 2. Typical segregated state of a binary granular mixture of the lighter particles with density ${\rho }_{l}=1.0\,{\rm{g}}\,{\mathrm{cm}}^{-3}$ and the heavier ones with density ${\rho }_{h}=20.0\,{\rm{g}}\,{\mathrm{cm}}^{-3}$ from a completely mixed initial state at (a) 30, (b) 100, (c) 300, and (d) 40 000 vibration periods, respectively. The open and closed circles represent the lighter and heavier particles, respectively.