Dynamic properties of the two-dimensional density-driven segregation

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

Figure 6. Time evolution of the order parameter for the density of the heavier particles being ${\rho }_{h}=8.0\,{\rm{g}}\,{\mathrm{cm}}^{-3}$ (circles), $3.0\,{\rm{g}}\,{\mathrm{cm}}^{-3}$ (diamonds) and $2.0\,{\rm{g}}\,{\mathrm{cm}}^{-3}$ (triangles), respectively. The density of the lighter particles is fixed at ${\rho }_{l}=1.0\,{\rm{g}}\,{\mathrm{cm}}^{-3}$. The open and closed symbols are for the results obtained from a completely mixed initial state and a pure separated initial state, respectively.