PMID: 22587090May 17, 2012Paper

Ringlike spin segregation of binary mixtures in a high-velocity rotating drum

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Huang DecaiDeng Kaiming

Abstract

This study presents molecular dynamics simulations on the segregation of binary mixtures in a high-velocity rotating drum. Depending on the ratio between the particle radius and density, similarities to the Brazil-nut effect and its reverse form are shown in the ringlike spin segregation patterns in radial direction. The smaller and heavier particles accumulated toward the drum wall, whereas the bigger and lighter particles accumulated toward the drum center. The effects of particle radius and density on the segregation states were quantified and the phase diagram of segregation in the ρ(b)/ρ(s) - r(b)/r(s) space was plotted. The observed phenomena can be explained by the combined percolation and the buoyancy effects.

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Citations

Feb 20, 2019·Physical Review. E·Sudarshan KonidenaAnugrah Singh

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