Work

Fluid-induced particle-size segregation in sheared granular assemblies

Year: 1996

Type: article

Abstract: We perform a two-dimensional molecular-dynamics study of a model for bidisperse granular systems under conditions of simple shear flow. We find that if the ratio of shear rate to viscosity is small, then the particles in the system arrange themselves in bands of big and small particles oriented along the direction of the flow. Each band contains particles of one species only. We present a mechanism for this particle-size segregation phenomenon based on the observation that segregation occurs if the viscous length scale introduced by a liquid in the system is smaller than the mean free path of the particles. For large values of shear rate to viscosity the system remains disordered. \textcopyright{} 1996 The American Physical Society.

Source: Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

DOI: 10.1103/physreve.54.5066

Authors: Sitangshu Bikas Santra, Stefan Schwarzer, Hans Herrmann

Institutions: University of Stuttgart, Physique et Mécanique des Milieux Hétérogènes, ESPCI Paris

Language: English

Topic: Granular flow and fluidized beds

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funders: Deutscher Akademischer Austauschdienst, Forschungszentrum Jülich

OpenAlex ID: W1997659782

FWCI: 2.063

Cites: 10

Cited by: 29

Related to: 10