INVESTIGADORES
IPPOLITO Irene Paula
artículos
Título:
Dispersive flow of disks through a two-dimensional Galton board
Autor/es:
L BRUNO, A. CALVO, I. IPPOLITO
Revista:
The European Physical Journal E
Editorial:
EDP Sciences
Referencias:
Año: 2003 vol. 11 p. 131 - 141
ISSN:
1292-8941
Resumen:
We report here an experimental and numerical study of the flow properties of disks driven bygravity through a hexagonal lattice of obstacles, i.e. a Galton board. During the fall, particles experiencedissipative collisions that scatter them in random directions. A driven-diffusion regime can be achievedunder certain conditions. A characteristic length of the motion and its dependence on geometrical parametersof the system is analyzed in the steady regime. The influence of collective effects on the dispersionprocess is investigated by comparison between single- and many-particle flows. The characterization ofthe dynamics and the diffusive properties of the flow in a system like a Galton board can be expanded toother granular systems, particularly static solid particle mixers and will give some insight in understandinggranular mixing.