Segregation-driven organization in chaotic granular flows.
Ontology highlight
ABSTRACT: An important industrial problem that provides fascinating puzzles in pattern formation is the tendency for granular mixtures to de-mix or segregate. Small differences in either size or density lead to flow-induced segregation. Similar to fluids, noncohesive granular materials can display chaotic advection; when this happens chaos and segregation compete with each other, giving rise to a wealth of experimental outcomes. Segregated structures, obtained experimentally, display organization in the presence of disorder and are captured by a continuum flow model incorporating collisional diffusion and density-driven segregation. Under certain conditions, structures never settle into a steady shape. This may be the simplest experimental example of a system displaying competition between chaos and order.
SUBMITTER: Hill KM
PROVIDER: S-EPMC18349 | biostudies-other | 1999 Oct
REPOSITORIES: biostudies-other
ACCESS DATA