Modeling of co-current and counter-current bubble columns with an extended EMMS approach

doi:10.1016/j.partic.2018.07.009

	Modeling of co-current and counter-current bubble columns with an extended EMMS approach
	Guan, Xiaoping; Yang, Ning
	2019-06-01
会议日期	OCT 15-18, 2017
会议地点	Beijing, PEOPLES R CHINA
关键词	Co-current Counter-current Bubble columns CFD Drag model
卷号	44
DOI	10.1016/j.partic.2018.07.009
页码	126-135
英文摘要	Bubble columns can be operated in semi-batch, co-current or counter-current mode. This study attempts to extend the dual-bubble-size (DBS) model, viz., the energy-minimization multi-scale (EMMS) model for gas-liquid systems, to co-current and counter-current bubble columns. With the increase of superficial liquid velocity, the predicted total gas holdup and regime transition are in accordance with experiments. A DBS drag model was then developed and incorporated into the CFD simulation. The total gas holdup and local gas holdup radial distribution in both the co-current and counter-current bubble columns are well estimated. The findings in the present work demonstrate that developing closure laws through the stability condition is of great significance in modeling complicated multi-scale flow in bubble columns. (C) 2019 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
源文献作者	Chinese Acad Sci, Inst Proc Engn, Chinese Soc Particuol
会议录	PARTICUOLOGY
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Research Center for Mesoscience at Institute of Process Engineering ; Strategic Priority Research Program, Chinese Academy of Sciences
会议录出版者	ELSEVIER SCIENCE INC
语种	英语
资助项目	National Key R&D Program of China[2017YFB0602500] ; National Natural Science Foundation of China[91634203] ; National Natural Science Foundation of China[21808222] ; Beijing Natural Science Foundation[2184125] ; Research Center for Mesoscience at Institute of Process Engineering[COM2016A004] ; Strategic Priority Research Program, Chinese Academy of Sciences[XDA21030700]
ISSN号	1674-2001
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000468708400015
WOS关键词	FLOW REGIME TRANSITION ; GAS-LIQUID FLOW ; CFD SIMULATION ; HYDRODYNAMICS HOLDUP ; STABILITY CONDITION ; PHASE DISTRIBUTION ; TURBULENCE MODELS ; COMPLEX-SYSTEMS ; SOLID FLOW ; FORCES
内容类型	会议论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28975]
专题	中国科学院过程工程研究所
通讯作者	Guan, Xiaoping; Yang, Ning
作者单位	Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Guan, Xiaoping,Yang, Ning. Modeling of co-current and counter-current bubble columns with an extended EMMS approach[C]. 见:. Beijing, PEOPLES R CHINA. OCT 15-18, 2017.