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Numerical investigation of granular flow similarity in rotating drums
Qi, Huabiao1,2; Xu, Ji1; Zhou, Guangzheng1; Chen, Feiguo1; Ge, Wei1; Li, Jinghai1
2015-10-01
Source PublicationPARTICUOLOGY
ISSN1674-2001
Volume22Issue:OCTPages:119-127
Abstract

The theory of flow similarity has not been well established for granular flows, in contrast to the case for conventional fluids, owing to a lack of reliable and general constitutive laws for their continuum description. A rigorous investigation of the similarity of velocity fields in different granular systems would be valuable to theoretical studies. However, experimental measurements face technological and physical problems. Numerical simulations that employ the discrete element method (DEM) may be an alternative to experiments by providing similar results, where quantitative analysis could be implemented with virtually no limitation. In this study, the similarity of velocity fields is investigated for the rolling regime of rotating drums by conducting simulations based on the DEM and using graphics processing units. For a constant Froude number, it is found that the particle-to-drum size ratio plays a dominant role in the determination of the velocity field, while the velocity field is much more sensitive to some material properties than to others. The implications of these findings are discussed in terms of establishing theoretical similarity laws for granular flows. (C) 2015 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

KeywordDiscrete Element Method Granular Flow Similarity Rotating Drum Scale Up Graphics Processing Unit
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.partic.2014.10.012
Indexed BySCI
Language英语
WOS KeywordDISCRETE PARTICLE SIMULATION ; PARTICULATE SYSTEMS ; TOTE BLENDER ; PERFORMANCE ; CYLINDERS ; DEM ; BEHAVIOR ; SOLIDS ; MOTION ; MEDIA
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Chemical ; Materials Science, Multidisciplinary
WOS IDWOS:000360597600016
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19516
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qi, Huabiao,Xu, Ji,Zhou, Guangzheng,et al. Numerical investigation of granular flow similarity in rotating drums[J]. PARTICUOLOGY,2015,22(OCT):119-127.
APA Qi, Huabiao,Xu, Ji,Zhou, Guangzheng,Chen, Feiguo,Ge, Wei,&Li, Jinghai.(2015).Numerical investigation of granular flow similarity in rotating drums.PARTICUOLOGY,22(OCT),119-127.
MLA Qi, Huabiao,et al."Numerical investigation of granular flow similarity in rotating drums".PARTICUOLOGY 22.OCT(2015):119-127.
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