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 …

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, non-cohesive 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 …