| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000310603 |
| ISSN: | 0103-9733 |
| Authors: | Potiguar, Fabricio Q1 Dickman, Ronald |
| Institutions: | 1Universidade Federal de Minas Gerais, Departamento de Fisica, Belo Horizonte, Minas Gerais. Brasil |
| Year: | 2006 |
| Season: | Sep |
| Volumen: | 36 |
| Number: | N |
| Pages: | 736-740 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | We present Monte Carlo simulations of the lattice gas with nearest-neighbor exclusion and Kawasaki (hopping) dynamics (hard square lattice gas), under the influence of a nonuniform drive, on the square lattice. The drive, which favors motion along the +x axis and inhibits motion in the opposite direction, varies linearly in the y direction. Our lattice has rigid walls at the end points in the y direction and periodic boundaries along the drive. We find that this model has transition to a sublattice-ordered phase at a density of about 0.298, lower than in equilibrium (rc @ 0.37), but somewhat higher than in the uniformly driven case at maximal bias (rc @ 0.272). For smaller global densities (r < 0.33), the ordering occurs with particle accumulation in the low-drive region. Above this density we observe a surprising reversal in the density profile, with particles migrating to the high-drive region |
| Disciplines: | Física y astronomía, Matemáticas |
| Keyword: | Dinámica de fluidos, Matemáticas aplicadas, Exclusión de vecinos cercanos, Monte Carlo, Redes de gas, Cizalla |
| Keyword: | Physics and astronomy, Mathematics, Fluid dynamics, Applied mathematics, Nearest-neighbor exclusion, Monte Carlo, Lattice gas, Shear drive |
| Full text: | Texto completo (Ver HTML) |
