CAS OpenIR  > 多相复杂系统国家重点实验室
Direct numerical simulation of particle clustering in gas-solid flow with a macro-scale particle method
Ma, Jingsen1,2; Ge, Wei1; Xiong, Qingang1,2; Wang, Junwa1,2; Li, Jinghai1; Ge, W
2009
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume64Issue:1Pages:43-51
AbstractParticle clustering has long been a focus in the study of gas-solid flow. Detailed flow field information below the particle scale is required to understand the mechanism of its formation and the statistical properties of its dynamic behavior, but is not easily obtained in both experiments and numerical simulations. In this article, a meshless method is used to reveal such details in the destabilizing of a suspension with hundreds of particles. During the process, doublets, quadruplet and larger clusters are seen to form and disintegrate dynamically, showing a tendency to minimize local voidages. At the same time, single vertical streams, pairs of parallel streams and many irregular streams appear and disappear between particle clusters alternatively, exhibiting a tendency to suffer lowest resistance. Globally, the spatio-temporal compromise between these two tendencies results in a configuration of large clusters separated by fast flow streams. In the Clustering process, the inter-phase slip velocity is seen to increase long after the forces on each phase have stabilized, suggesting that inter-phase friction is not a function of local voidage and Reynolds number only, as commonly considered. The article concludes with prospects on the sub-grid scale models for continuum description of gas-solid flow that can be established upon such simulation results. (c) 2008 Elsevier Ltd. All rights reserved.
KeywordClustering Fluidization Hydrodynamics Multiphase Flow Simulation Smoothed Particle Hydrodynamics
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.ces.2008.09.005
Indexed BySCI
Language英语
WOS KeywordLOW-REYNOLDS-NUMBER ; FLUIDIZED-BED ; SYSTEMS ; MODEL ; SPHERE ; HYDRODYNAMICS ; SUSPENSIONS ; DRAG
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000262119800005
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6770
Collection多相复杂系统国家重点实验室
Corresponding AuthorGe, W
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ma, Jingsen,Ge, Wei,Xiong, Qingang,et al. Direct numerical simulation of particle clustering in gas-solid flow with a macro-scale particle method[J]. CHEMICAL ENGINEERING SCIENCE,2009,64(1):43-51.
APA Ma, Jingsen,Ge, Wei,Xiong, Qingang,Wang, Junwa,Li, Jinghai,&Ge, W.(2009).Direct numerical simulation of particle clustering in gas-solid flow with a macro-scale particle method.CHEMICAL ENGINEERING SCIENCE,64(1),43-51.
MLA Ma, Jingsen,et al."Direct numerical simulation of particle clustering in gas-solid flow with a macro-scale particle method".CHEMICAL ENGINEERING SCIENCE 64.1(2009):43-51.
Files in This Item:
File Name/Size DocType Version Access License
20131211-238-复件 1-s2(4656KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ma, Jingsen]'s Articles
[Ge, Wei]'s Articles
[Xiong, Qingang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ma, Jingsen]'s Articles
[Ge, Wei]'s Articles
[Xiong, Qingang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ma, Jingsen]'s Articles
[Ge, Wei]'s Articles
[Xiong, Qingang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.