Segregation patterns in rotating cylinders determined by the size difference, density ratio, and cylinder diameter.

ABSTRACT: Granular materials often segregate under mechanical agitation, which differs from the expectation of mixing. It is well known that a bidisperse mixture of granular materials in a partially filled rotating cylinder exhibits alternating bands depending on the combination of the two species. The dynamic angle of repose, which is the angle that a steady avalanche makes with the horizontal, has been considered the dominant parameter that determines the segregated state. However, the previously known angle of repose condition was not always satisfied in different experimental cases. To clarify the experimental conditions, we conducted an exhaustive parameter search with three dimensionless parameters: the particle size difference normalized by the average particle size, the specific density rati

SUBMITTER: Kondo K 

PROVIDER: S-EPMC10439168 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature