Bubble splitting under gas-liquid-liquid three-phase flow in a double T-junction microchannel

doi:10.1002/aic.15924

	Bubble splitting under gas-liquid-liquid three-phase flow in a double T-junction microchannel
	Liu, Yanyan 2,3; Yue, Jun 1; Zhao, Shuainan 2; Yao, Chaoqun 2; Chen, Guangwen 2
刊名	AICHE JOURNAL
	2018
卷号	64 期号:1 页码:376-388
关键词	Microreactor Microfluidics Multiphase Flow Bubble Phenomena Bubble Breakup
ISSN号	0001-1541
DOI	10.1002/aic.15924
文献子类	Article
英文摘要	Gas-aqueous liquid-oil three-phase flow was generated in a microchannel with a double T-junction. Under the squeezing of the dispersed aqueous phase at the second T-junction (T2), the splitting of bubbles generated from the first T-junction (T1) was investigated. During the bubble splitting process, the upstream gas-oil two-phase flow and the aqueous phase flow at T2 fluctuate in opposite phases, resulting in either independent or synchronous relationship between the instantaneous downstream and upstream bubble velocities depending on the operating conditions. Compared with two-phase flow, the modified capillary number and the ratio of the upstream velocity to the aqueous phase velocity were introduced to predict the bubble breakup time. The critical bubble breakup length and size laws of daughter bubbles/slugs were thereby proposed. These results provide an important guideline for designing microchannel structures for a precise manipulation of gas-liquid-liquid three-phase flow which finds potential applications among others in chemical synthesis. (c) 2017 American Institute of Chemical Engineers AIChE J, 63: 376-388, 2018
WOS关键词	2-PHASE MASS-TRANSFER ; DROPLET FORMATION ; SEGMENTED FLOW ; PRESSURE-DROP ; SLUG FLOW ; BREAKUP ; REACTOR ; MILLIREACTORS ; ENHANCEMENT ; OBSTRUCTION
WOS研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000417648900035
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168396]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Yao, Chaoqun; Chen, Guangwen
作者单位	1.Univ Groningen, Engn & Technol Inst Groningen, Dept Chem Engn, NL-9747 AG Groningen, Netherlands 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yanyan,Yue, Jun,Zhao, Shuainan,et al. Bubble splitting under gas-liquid-liquid three-phase flow in a double T-junction microchannel[J]. AICHE JOURNAL,2018,64(1):376-388.
APA	Liu, Yanyan,Yue, Jun,Zhao, Shuainan,Yao, Chaoqun,&Chen, Guangwen.(2018).Bubble splitting under gas-liquid-liquid three-phase flow in a double T-junction microchannel.AICHE JOURNAL,64(1),376-388.
MLA	Liu, Yanyan,et al."Bubble splitting under gas-liquid-liquid three-phase flow in a double T-junction microchannel".AICHE JOURNAL 64.1(2018):376-388.