Pattern dynamics of cohesive granular particles under a plane shear

Abstract

We perform three dimensional molecular dynamics simulations of cohesive granular particles under a plane shear. From the simulations, we found that the granular temperature of the system abruptly decreases to zero after reaching the critical temperature, where the characteristic time $t_{\mathrm{cl}}$ is approximately represented by $t_{\mathrm{cl}}\propto (\zeta -{\zeta }_{\mathrm{cr}}{)}^{-\beta }$ with the dissipation rate $\zeta$, the critical dissipation rate ${\zeta }_{\mathrm{cr}}$ and the exponent $\beta \simeq 0.8$. We also found that there exist a variety types of clusters depending on the initial density and the dissipation rate.

4 pages, 5 figures