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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
发表期刊POWDER TECHNOLOGY
ISSN0032-5910
卷号295期号:JULY页码:122-132
摘要An 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.
关键词Fluidization Bubbling Fluidized Beds Simulation Tc-sp Method
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.powtec.2016.03.042
收录类别SCI
语种英语
关键词[WOS]GAS-SOLID FLOW ; DRAG COEFFICIENT ; 2-FLUID MODEL ; PARTICLES ; GELDART ; VALIDATION ; EXTENSION ; MIXTURES ; CATALYST ; REACTORS
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(21325628) ; State Key Development Program for Basic Research of China (973 Program)(2015CB251402)
WOS记录号WOS:000377229000014
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20954
专题多相复杂系统国家重点实验室
作者单位1.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
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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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