New boundary conditions for granular fluids
| dc.creator | Shattuck, Mark D. | |
| dc.date | 2007-03-22 | |
| dc.date.accessioned | 2026-07-07T07:53:10Z | |
| dc.date.available | 2026-07-07T07:53:10Z | |
| dc.description | We present experimental evidence, which contradicts the the standard boundary conditions used in continuum theories of non-cohesive granular flows for the velocity normal to a boundary u.n=0, where n points into the fluid. We propose and experimentally verify a new boundary condition for u.n, based on the observation that the boundary cannot exert a tension force Fb on the fluid. The new boundary condition is u.n=0 if Fb.n>=0 else n.P.n=0, where P is the pressure tensor. This is the analog of cavitation in ordinary fluids, but due the lack of attractive forces and dissipation it occurs frequently in granular flows. | |
| dc.description | 6 pages, 5 figures, submitted to PRE | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0703575 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0703575 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/126154 | |
| dc.subject | Soft Condensed Matter | |
| dc.title | New boundary conditions for granular fluids | |
| dc.type | text |