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Particle-motion-resolved discrete model for simulating gas-solid fluidization
Alternative TitleChem. Eng. Sci.
Ouyang, J; Li, JH
1999-07-01
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume54Issue:13-14Pages:2077-2083
AbstractThis paper presents numerical simulations of two-dimensional gas-solid fluidized beds by establishing the so-called particle-motion-resolved discrete model in which the motion of the solid phase is calculated by considering individual particle motions while gas flow is described by the Navier-Stokes equation. The particle-motion-resolved method is used to treat the interparticle interaction and particle/fluid interaction, resolving the overall movement of particles into the collision process accounting for the interparticle interaction and the suspension process related to the interaction with the fluid. It was assumed that momentum conservation of collision mechanics controls the interaction between colliding particles, while the state of each suspended particle is fully dominated by fluid/particle interaction. Comparing a two-dimensional hexagonal lattice with a three-dimensional hexagonal packed structure, an unreal porosity calculated on area basis is transformed into a three-dimensional porosity in order to give reasonable simulation results. The above model has been used for simulating bubbling, slugging and cluster behavior in gas-solid fluidization, resulting in more reasonable phenomena such as distinct eddies, particle-free slugs and the dynamic clusters. (C) 1999 Elsevier Science Ltd. All rights reserved.; This paper presents numerical simulations of two-dimensional gas-solid fluidized beds by establishing the so-called particle-motion-resolved discrete model in which the motion of the solid phase is calculated by considering individual particle motions while gas flow is described by the Navier-Stokes equation. The particle-motion-resolved method is used to treat the interparticle interaction and particle/fluid interaction, resolving the overall movement of particles into the collision process accounting for the interparticle interaction and the suspension process related to the interaction with the fluid. It was assumed that momentum conservation of collision mechanics controls the interaction between colliding particles, while the state of each suspended particle is fully dominated by fluid/particle interaction. Comparing a two-dimensional hexagonal lattice with a three-dimensional hexagonal packed structure, an unreal porosity calculated on area basis is transformed into a three-dimensional porosity in order to give reasonable simulation results. The above model has been used for simulating bubbling, slugging and cluster behavior in gas-solid fluidization, resulting in more reasonable phenomena such as distinct eddies, particle-free slugs and the dynamic clusters. (C) 1999 Elsevier Science Ltd. All rights reserved.
KeywordParticle-motion-resolved Discrete Model Simulation Gas-solid Fluidization
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed ByISTP ; SCI
Language英语
WOS KeywordFLOW ; BEDS ; BUBBLE
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000080906200013
Citation statistics
Cited Times:73[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6014
Collection研究所(批量导入)
AffiliationAcad Sinica, Inst Chem Met, Multiphase React Lab, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Ouyang, J,Li, JH. Particle-motion-resolved discrete model for simulating gas-solid fluidization[J]. CHEMICAL ENGINEERING SCIENCE,1999,54(13-14):2077-2083.
APA Ouyang, J,&Li, JH.(1999).Particle-motion-resolved discrete model for simulating gas-solid fluidization.CHEMICAL ENGINEERING SCIENCE,54(13-14),2077-2083.
MLA Ouyang, J,et al."Particle-motion-resolved discrete model for simulating gas-solid fluidization".CHEMICAL ENGINEERING SCIENCE 54.13-14(1999):2077-2083.
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