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Comparative CFD Analysis of Heterogeneous Gas-Solid Flow in a Countercurrent Downer Reactor
Alternative TitleInd. Eng. Chem. Res.
Shu, Zhan1,2; Peng, Guo1,2; Wang, Junwu1; Zhang, Nan1; Li, Songgeng1; Lin, Weigang1
2014-02-26
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume53Issue:8Pages:3378-3384
AbstractIt has been widely recognized that input parameters affected the results of Eulerian simulation of gas-solid flow. In this study, a comparative study was performed to study the effect of input parameters on the hydrodynamics of gas-solid flow in a countercurrent downer reactor. It was concluded that the input parameters of the Eulerian model, including restitution coefficients, specularity coefficient, and drag correlation, have a major effect on the bed hydrodynamics, in accordance with previous studies on other types of gas-fluidized beds. More importantly, we show that it is possible to match the experimental data either by changing the wall boundary conditions or by correcting the interphase drag force. Therefore, there is no unique way to tune the input parameters to fit the experimental data. This study indicated that researchers have to pay great caution when selecting input parameters and highlighted the requirement of stringent experimental tests of the state-of-the-art Eulerian models.; It has been widely recognized that input parameters affected the results of Eulerian simulation of gas-solid flow. In this study, a comparative study was performed to study the effect of input parameters on the hydrodynamics of gas-solid flow in a countercurrent downer reactor. It was concluded that the input parameters of the Eulerian model, including restitution coefficients, specularity coefficient, and drag correlation, have a major effect on the bed hydrodynamics, in accordance with previous studies on other types of gas-fluidized beds. More importantly, we show that it is possible to match the experimental data either by changing the wall boundary conditions or by correcting the interphase drag force. Therefore, there is no unique way to tune the input parameters to fit the experimental data. This study indicated that researchers have to pay great caution when selecting input parameters and highlighted the requirement of stringent experimental tests of the state-of-the-art Eulerian models.
KeywordCirculating Fluidized-bed Eulerian Simulation Boundary-conditions Kinetic-theory Hydrodynamics Model Computation Suspension Particles Dynamics
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie403496a
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCIRCULATING FLUIDIZED-BED ; EULERIAN SIMULATION ; BOUNDARY-CONDITIONS ; KINETIC-THEORY ; HYDRODYNAMICS ; MODEL ; COMPUTATION ; SUSPENSION ; PARTICLES ; DYNAMICS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000332144500056
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8057
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100490, Peoples R China
Recommended Citation
GB/T 7714
Shu, Zhan,Peng, Guo,Wang, Junwu,et al. Comparative CFD Analysis of Heterogeneous Gas-Solid Flow in a Countercurrent Downer Reactor[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(8):3378-3384.
APA Shu, Zhan,Peng, Guo,Wang, Junwu,Zhang, Nan,Li, Songgeng,&Lin, Weigang.(2014).Comparative CFD Analysis of Heterogeneous Gas-Solid Flow in a Countercurrent Downer Reactor.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(8),3378-3384.
MLA Shu, Zhan,et al."Comparative CFD Analysis of Heterogeneous Gas-Solid Flow in a Countercurrent Downer Reactor".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.8(2014):3378-3384.
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