Two-fluid modeling of Geldart A particles in gas-solid micro-fluidized beds

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	Two-fluid modeling of Geldart A particles in gas-solid micro-fluidized beds
	Liu, Xiaoxing 1; Zhu, Chuanqiang 1,2; Geng, Shujun 1,2; Yao, Meiqin 1; Zhan, Jinhui 1; Xua, Guangwen 1
刊名	PARTICUOLOGY
	2015-08-01
卷号	21 期号:AUG 页码:118-127
关键词	Micro-fluidized bed Geldart A particle Two-fluid model Boundary condition Drag model
ISSN号	1674-2001
英文摘要	The fluidization behavior of Geldart A particles in a gas-solid micro-fluidized bed was investigated by Eulerian-Eulerian numerical simulation. The commonly used Gidaspow drag model was tested first. The simulation showed that the predicted minimum bubbling velocities were significantly lower than the experimental data even when an extremely fine grid size (of approximately one particle diameter) was used. The modified Gibilaro drag model was therefore tested next. The predicted minimum bubbling velocity and bed voidage were in reasonable agreement with the experimental data available in literature. The experimentally observed regime transition phenomena from bubbling to slugging were also reproduced successfully in the simulations. Parametric studies indicated that the solid-wall boundary conditions had a significant impact on the predicted gas and solid flow behavior. (C) 2014 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
关键词[WOS]	FCC PARTICLES ; EXPERIMENTAL VALIDATION ; TURBULENT FLUIDIZATION ; NUMERICAL-SIMULATION ; EULERIAN SIMULATION ; PART I ; HYDRODYNAMICS ; BEHAVIOR ; FLOWS ; EXPANSION
收录类别	SCI
语种	英语
WOS记录号	WOS:000356980700013
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/19319]
专题	过程工程研究所_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 Inst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiaoxing,Zhu, Chuanqiang,Geng, Shujun,et al. Two-fluid modeling of Geldart A particles in gas-solid micro-fluidized beds[J]. PARTICUOLOGY,2015,21(AUG):118-127.
APA	Liu, Xiaoxing,Zhu, Chuanqiang,Geng, Shujun,Yao, Meiqin,Zhan, Jinhui,&Xua, Guangwen.(2015).Two-fluid modeling of Geldart A particles in gas-solid micro-fluidized beds.PARTICUOLOGY,21(AUG),118-127.
MLA	Liu, Xiaoxing,et al."Two-fluid modeling of Geldart A particles in gas-solid micro-fluidized beds".PARTICUOLOGY 21.AUG(2015):118-127.