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Binary-size granules segregation from core pattern to streak pattern in a rotating drum

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

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).

Abstract

There is a paucity of studies on the relationship between the control parameters and kinetic parameters in binary-size granular segregation models. In this study, the machine vision method and particle image velocimetry (PIV) were used to measure the shape index of segregation pattern and streamwise velocity, respectively. Two scaled parameters, control parameters, and kinetic parameters were calculated based on the continuous flow model and segregation model. The control parameters include volume flow rate, and the kinetic parameters include the ratio of segregation effects to diffusion effects. By analyzing the relationship between the two parameters under the core and streak patterns, the configuration of segregation pattern at steady-state changes with the control parameters wherein the ratio of segregation effects to diffusion effects decreases approximately linearly as the volume flow rate decreases. These experimental results aid in revealing the mechanism of segregation and providing the reference data for improving the theoretical models.

Publication metadata

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

Publication type: Article

Publication status: Published

Journal: Powder Technology

Year: 2021

Volume: 380

Pages: 518-525

Print publication date: 01/03/2021

Online publication date: 21/11/2020

Acceptance date: 18/11/2020

Date deposited: 27/11/2020

ISSN (print): 0032-5910

ISSN (electronic): 1873-328X

Publisher: Elsevier BV

URL: https://doi.org/10.1016/j.powtec.2020.11.035

DOI: 10.1016/j.powtec.2020.11.035

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