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A new structural parameters model based on drag coefficient for simulation of circulating fluidized beds
Liu, Wenming1,2; Li, Hongzhong1; Zhu, Qingshan1; Zhu, Quanhong1
2015-12-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume286Issue:DECPages:516-526
AbstractThis work presented a new scheme to establish structural parameters model, and the model was used to solve structural parameters based on the available structure-based drag model. By combining with the Eulerian two-fluid model, the hydrodynamics of circulating fluidized beds (CFBs) was simulated. Different combinations of clusters properties, including the cluster voidage and diameter, were adopted to fit for Geldart A and B particles and to close the insufficient solving equations, respectively. The simulated solid mass flux, radial and axial voidage profiles were in agreement with the experimental data. The dilute-top/dense-bottom and the core-annular flow structure were also captured. Moreover the spatiotemporal fluctuation of clusters can be observed from those simulations. Simulation results showed the combination of the structural parameters model with the available structure-based drag model can predict well the hydrodynamics for Geldart A and B particles in CFBs. (C) 2015 Elsevier B.V. All rights reserved.
KeywordFluidization Simulation Hydrodynamics Cfbs Structure-based Drag Model
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2015.08.049
Indexed BySCI
Language英语
WOS KeywordSTRUCTURE-DEPENDENT DRAG ; GAS-SOLID FLOWS ; CFD SIMULATION ; EULERIAN SIMULATION ; SYSTEMS ; RISER ; PARTICLES ; STRIPPERS ; VELOCITY ; WALL
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:000364247200060
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19830
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
Liu, Wenming,Li, Hongzhong,Zhu, Qingshan,et al. A new structural parameters model based on drag coefficient for simulation of circulating fluidized beds[J]. POWDER TECHNOLOGY,2015,286(DEC):516-526.
APA Liu, Wenming,Li, Hongzhong,Zhu, Qingshan,&Zhu, Quanhong.(2015).A new structural parameters model based on drag coefficient for simulation of circulating fluidized beds.POWDER TECHNOLOGY,286(DEC),516-526.
MLA Liu, Wenming,et al."A new structural parameters model based on drag coefficient for simulation of circulating fluidized beds".POWDER TECHNOLOGY 286.DEC(2015):516-526.
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