CFD simulation of internal-loop airlift reactor using EMMS drag model

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	CFD simulation of internal-loop airlift reactor using EMMS drag model
	Xu, Tingting 1,2; Jiang, Xuedong 1,3; Yang, Ning 1; Zhu, Jiahua 4
刊名	PARTICUOLOGY
	2015-04-01
卷号	19 期号:APRIL 页码:124-132
关键词	Computational fluid dynamics Internal-loop Airlift Multi-scale Multiphase flow Hydrodynamics
ISSN号	1674-2001
通讯作者	Yang, N (reprint author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China.
英文摘要	The simulation of internal-loop airlift reactors is challenging because complex meso-scale structures exist in different sections of the reactor, separated by the draft tube. This paper reports on the computational fluid dynamics (CFD) simulation of internal-loop airlift reactors using a new drag model derived from the dual-bubble-size COBS) model, an extended energy-minimization multi-scale (EMMS) approach for gas-liquid flows. Compared with the traditional Schiller-Naumann (S-N) correlation, the new model improves the simulation of gas holdup in the riser and downcomer significantly. In particular, gas holdup and circulation of two-phase flow can be modeled successfully using the new model, whereas traditional drag models such as the S-N correlation show an absence of gas in the downcomer. The simulation demonstrates the advantage and potential of this new model for internal-loop airlift reactors. (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
学科主题	Engineering ; Materials Science
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]	FLOW-REGIME TRANSITIONS ; BUBBLE-COLUMNS ; STABILITY CONDITION ; GAS HOLDUP ; FLUID
收录类别	SCI
语种	英语
WOS记录号	WOS:000352750900017
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13789]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.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 3.Xi An Jiao Tong Univ, Dept Chem Engn, Xian 710049, Peoples R China 4.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
推荐引用方式 GB/T 7714	Xu, Tingting,Jiang, Xuedong,Yang, Ning,et al. CFD simulation of internal-loop airlift reactor using EMMS drag model[J]. PARTICUOLOGY,2015,19(APRIL):124-132.
APA	Xu, Tingting,Jiang, Xuedong,Yang, Ning,&Zhu, Jiahua.(2015).CFD simulation of internal-loop airlift reactor using EMMS drag model.PARTICUOLOGY,19(APRIL),124-132.
MLA	Xu, Tingting,et al."CFD simulation of internal-loop airlift reactor using EMMS drag model".PARTICUOLOGY 19.APRIL(2015):124-132.