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Prediction of segregation characterization based on granular velocity and concentration in rotating drum

Lookup NU author(s): Dr Ruisheng Li, Dr Vladimir Zivkovic

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Abstract

In a binary granular system composed of two types of particles with different granule sizes and the same density, particle sorting occurs easily during the flow process. The segregation pattern structure is mainly affected by the granular velocity and granular concentration in the flow layer. This paper reports on the experimental velocity and concentration measurement results for spherical particles in a quasi-two-dimensional rotating drum. The relationship between the granular velocity along the depth direction of the flow layer and granular concentration was established to characterize structures with different degrees of segregation. The corresponding relationships between the granular velocity and concentration and the segregation pattern were further analyzed to improve the theoretical models of segregation (convection–diffusion model and continuous flow model) and provide a reference for granular segregation control in the production process.

Publication metadata

Author(s): Xiu WZ, Li R, Chen Q, Sun QC, Zivkovic V, Yang H

Publication type: Article

Publication status: Published

Journal: Particuology

Year: 2022

Volume: 73

Pages: 17-25

Print publication date: 01/02/2023

Online publication date: 04/05/2022

Acceptance date: 16/03/2022

Date deposited: 21/03/2022

ISSN (print): 1674-2001

ISSN (electronic): 2210-4291

Publisher: Elsevier

URL: https://doi.org/10.1016/j.partic.2022.03.008

DOI: 10.1016/j.partic.2022.03.008

ePrints DOI: 10.57711/1h5k-v509

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