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A transfer coefficient-based structure parameters method for CFD simulation of bubbling fluidized beds
Liu, Wenming1,2; Yang, Shuai1,2; Li, Hongzhong1; Zhu, Qingshan1
2016-07-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume295Issue:JULYPages:122-132
AbstractAn experimental and computational study was presented on the hydrodynamics of the bubbling fluidized bed (BFB). Based on the Eulerian-Eulerian two-fluid model, a new structure parameters model was validated with experimental results. Compared with the conventional structure parameters models with eight parameters, the new model uses fewer structure parameters to obtain good agreement with the experimental data, and reduces the difficulty in developing closure equations and solving for the parameters. It was found that five necessary structure parameters (epsilon(e), U-se, f(b), d(b) and U-sb) play an important role in the structure-based drag model, and they were sufficient to represent the heterogeneous structures of the BFB. The simulated radial and axial profiles of solid concentration were in reasonable agreements with the experimental data. Solid mixing, including gross circulation and local mixing, as well as the formation and motion of bubbles were simulated, indicating the feasibility of the combination of the new structure parameters model with the available structure-based drag model for simulating the bubbling fluidized bed. (C) 2016 Elsevier B.V. All rights reserved.
KeywordFluidization Bubbling Fluidized Beds Simulation Tc-sp Method
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2016.03.042
Indexed BySCI
Language英语
WOS KeywordGAS-SOLID FLOW ; DRAG COEFFICIENT ; 2-FLUID MODEL ; PARTICLES ; GELDART ; VALIDATION ; EXTENSION ; MIXTURES ; CATALYST ; REACTORS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21325628) ; State Key Development Program for Basic Research of China (973 Program)(2015CB251402)
WOS IDWOS:000377229000014
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20954
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, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Wenming,Yang, Shuai,Li, Hongzhong,et al. A transfer coefficient-based structure parameters method for CFD simulation of bubbling fluidized beds[J]. POWDER TECHNOLOGY,2016,295(JULY):122-132.
APA Liu, Wenming,Yang, Shuai,Li, Hongzhong,&Zhu, Qingshan.(2016).A transfer coefficient-based structure parameters method for CFD simulation of bubbling fluidized beds.POWDER TECHNOLOGY,295(JULY),122-132.
MLA Liu, Wenming,et al."A transfer coefficient-based structure parameters method for CFD simulation of bubbling fluidized beds".POWDER TECHNOLOGY 295.JULY(2016):122-132.
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