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A structure-dependent multi-fluid model (SFM) for heterogeneous gas-solid flow
Hong, Kun1,2; Shi, Zhansheng1,2; Wang, Wei1; Li, Jinghai1; Wang, W
2013-08-09
发表期刊CHEMICAL ENGINEERING SCIENCE
卷号99期号:99页码:191-202
摘要For the heterogeneous gas solid flow in a fluidized bed, meso-scale structures, such as bubble and cluster, have significant effects on the hydrodynamics, mass/heat transfer and reaction rate. These structures can be described with certain kinds of bimodal probability density distribution of solids concentration, i.e., the dilute-dense two-phase structures. To keep the physical nature of these mesoscale structures in mathematical formulation, a structure-dependent, multi-fluid model (SFM) was proposed. Then, the SFM was reduced to the conventional two-fluid model (TFM) as well as the hydrodynamic equations of the bubble-based and cluster-based EMMS (energy-minimization multiscale) models by assuming different simplifications of structures. Thus, the SFM unifies these different models. A new version of bubble-based EMMS model was presented thereby and validated with comparison to experimental data. This bubble-based EMMS model was found to be applicable to wide flow regimes ranging from bubbling, turbulent to fast fluidization. (C) 2013 Elsevier Ltd. All rights reserved.
关键词Multiphase Flow Fluidization Bubble Structure Mathematical Modelling Emms
文章类型Article
WOS标题词Science & Technology ; Technology
收录类别SCI
语种英语
关键词[WOS]DISCRETE PARTICLE SIMULATION ; CFD-SIMULATION ; RISER FLOWS ; NUMERICAL-SIMULATION ; MESOSCALE STRUCTURES ; PARTICULATE FLOWS ; BUBBLE DIAMETER ; SUBGRID MODEL ; DRAG MODELS ; BED
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000321964700024
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ipe.ac.cn/handle/122111/1642
专题多相复杂系统国家重点实验室
通讯作者Wang, W
作者单位1.Chinese Acad Sci, Inst Proc Engn, EMMS Grp, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Hong, Kun,Shi, Zhansheng,Wang, Wei,et al. A structure-dependent multi-fluid model (SFM) for heterogeneous gas-solid flow[J]. CHEMICAL ENGINEERING SCIENCE,2013,99(99):191-202.
APA Hong, Kun,Shi, Zhansheng,Wang, Wei,Li, Jinghai,&Wang, W.(2013).A structure-dependent multi-fluid model (SFM) for heterogeneous gas-solid flow.CHEMICAL ENGINEERING SCIENCE,99(99),191-202.
MLA Hong, Kun,et al."A structure-dependent multi-fluid model (SFM) for heterogeneous gas-solid flow".CHEMICAL ENGINEERING SCIENCE 99.99(2013):191-202.
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