Density-induced granular segregation in a slurry rotating drum

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104718

Title:	Density-induced granular segregation in a slurry rotating drum
Authors:	蕭述三;Liao, Chun-Chung;Lan, Hung-Wen;Hsiau, Shu-San
Contributors:	秘書室
Keywords:	Density;Density-induced granular segregation;Fluid dynamics;Fluid flow;Fluids;Interstitial fluid density;Interstitials;Modified density ratio;Rotating;Rotating drum;Segregations;Stokes number;Viscosity
Date:	2016-09-01
Issue Date:	2026-04-23 11:56:22 (UTC+8)
Publisher:	Elsevier BV;Elsevier Ltd
Abstract:	摘要： •Interstitial fluid density significantly influences density granular segregation.•Segregation is enhanced with increasing dimensionless modified density ratio.•The transition was observed at a Stokes number of approximately 13. We experimentally investigated the effects of interstitial fluid density and viscosity on density-induced granular segregation in a rotating drum. Image processing and a particle-tracking method were used for determining the segregation index and dynamic properties of granular materials. The results indicate that the interstitial fluid density has a crucial role in density-induced granular segregation. A dimensionless factor was defined for quantifying the effect of interstitial fluid density on density-induced granular segregation. The segregation intensity increased as the interstitial fluid viscosity increased. In addition, the Stokes number associated with density-induced granular segregation was discussed in this study. Final steady-state segregation index plotted as a function of the dimensionless modified density ratio S. [Display omitted] 出版者： Elsevier Ltd 出版日期： 2016-09-01 出處： International journal of multiphase flow, 2016-09, Vol.84, p.1-8 資源來源： ScienceDirect (Elsevier) Journals 版權： 2016 Elsevier Ltd 識別號： ISSN: 0301-9322 識別號： EISSN: 1879-3533 識別號： DOI: 10.1016/j.ijmultiphaseflow.2016.04.015
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