CAS OpenIR
Geometrically exact discrete-element-method (DEM) simulation on the flow and mixing of sphero-cylinders in horizontal drums
Yu, Fuhai1,2; Zhang, Shuai1,3; Zhou, Guangzheng1; Zhang, Yun1; Ge, Wei1,2,4
2018-08-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume336Pages:415-425
Abstract

The mixing of non-spherical particles is often encountered in various industrial fields, but its mechanism is not well understood. Because of the complexity of contact detection for non-spherical particles, most simulations on particle mixing using the discrete-element method (DEM) are restricted to spherical particles. In this work, an efficient algorithm is used for the contact detection and the description of contact forces, with which the flow and mixing of geometrically exact sphero-cylinders in rotating drums was simulated in parallel computing using graphics processing units (GPUs). The specific shapes of the sphero-cylinders affect their dynamic behavior in mono- and bi-disperse systems, including the dynamic angle of repose, mixing constant, and segregation pattern. Certain kinds of preferential particle orientations exist, which are affected by the rotational speed and particle shape. The density difference leads to segregated cores of a higher density in the granular beds, whereas the effect of particle shape is secondary in this process. The joint effect of shape and density on particle distribution in the steady state can be used to improve the homogeneity of bi-disperse sphero-cylinder mixtures that differ in shape and density. (C) 2018 Elsevier B.V. All rights reserved.

KeywordDiscrete-element Method Sphero-cylinder Mixing Rotating Drum Shape Effect
DOI10.1016/j.powtec.2018.05.040
Language英语
WOS KeywordParticle-shape ; Rotating-drum ; Granular Flow ; Nonspherical Particles ; Numerical-simulation ; Particulate Systems ; Contact Detection ; Combined Size ; Multi-sphere ; Segregation
Funding ProjectNational Key Research and Development Program of China[2017YFB0202203] ; National Key Research and Development Program of China[2016YFB0200504] ; National Natural Science Foundation of China[91434201] ; Key Research Program of Frontier Science, CAS[QYZDJ-SSW-JSC029] ; Key Research Program of Frontier Science, CAS[XXH13506-301] ; Shell-CAS Strategic Cooperation Agreement[PT19253] ; Shell-CAS Strategic Cooperation Agreement[PT20037]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Shell-CAS Strategic Cooperation Agreement
WOS IDWOS:000441491300040
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25732
Collection中国科学院过程工程研究所
Corresponding AuthorGe, Wei
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100190, Peoples R China
3.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
4.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Yu, Fuhai,Zhang, Shuai,Zhou, Guangzheng,et al. Geometrically exact discrete-element-method (DEM) simulation on the flow and mixing of sphero-cylinders in horizontal drums[J]. POWDER TECHNOLOGY,2018,336:415-425.
APA Yu, Fuhai,Zhang, Shuai,Zhou, Guangzheng,Zhang, Yun,&Ge, Wei.(2018).Geometrically exact discrete-element-method (DEM) simulation on the flow and mixing of sphero-cylinders in horizontal drums.POWDER TECHNOLOGY,336,415-425.
MLA Yu, Fuhai,et al."Geometrically exact discrete-element-method (DEM) simulation on the flow and mixing of sphero-cylinders in horizontal drums".POWDER TECHNOLOGY 336(2018):415-425.
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