Spontaneous development of 3-D structure in sheared granular flows
| dc.creator | Lutsko, James F. | |
| dc.date | 2004-03-22 | |
| dc.date.accessioned | 2026-07-07T02:57:12Z | |
| dc.date.available | 2026-07-07T02:57:12Z | |
| dc.description | Computer simulations of sheared granular fluids, modeled as inelastic hard spheres, are presented which show signs of a uniquely three-dimensional instabilty. In the stable regime, a linear velocity profile, $v_{x}=ay$, with shear rate $a$ is established using Lees-Edwards boundary conditions. In the unstable regime, the velocity profile aquires a dependence on the third dimension of the form $v_{x}=ay+sin(2πz/L)$ in a cubic box with sides of length $L$. An analysis of the linearized Navier-Stokes equations shows the presence of an instability and gives a simple expression for the critical wavevector which is quantitatively consistent with the results of simulations and which indicates that the instability persists at low densities. | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0403551 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0403551 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/23572 | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Spontaneous development of 3-D structure in sheared granular flows | |
| dc.type | text |