IMECH-IR  > 非线性力学国家重点实验室
Effect of vortex on mass transport and mixing in microcapillary channels
Feng XS; Ren YK; Sun HZ; Chen XM; Zhang KL; Jia YK; Hou LK; Xiao MY; Jiang HY
Source PublicationCHEMICAL ENGINEERING JOURNAL
2019-04-15
Volume362Pages:442-452
ISSN1385-8947
AbstractWe present a combined numerical and experimental study of a novel design for a vortex-based mixer by virtue of easy insertion of inlet tubes into a capillary-based square channel. We show that, as the Reynolds number (Re) increases above 72, different patterns of vortices develop by changing the inlet configuration. At relatively higher Re, we observe that the disturbance posed by a vortex on the contact surface is not only dependent on its vorticity, but also correlates with the direction of vortex/vortex pair. As a consequence, recognition and application of suitable vortex pattern is of great importance for mixing enhancement. The designed mixer under four inflow confluence conditions, producing single vortex or vortex pair with different directions, shows different mixing performance in the Re range from 20 to 280, from which the optimum design approach capable of generating counter-rotating vortex pair along the outflow direction with higher mixing quality is found. This explains the mass transport and mixing observed in fluid flows with a vortex, which to date has not been studied before.
KeywordMicromixing Vortex-based micromixer Mixing enhancement Experimental analysis Navier-Stokes equations
DOI10.1016/j.cej.2019.01.055
Indexed BySCI ; EI
Language英语
WOS IDWOS:000457863500046
WOS KeywordLOW-REYNOLDS-NUMBER ; PASSIVE MIXERS ; T-MIXER ; FLOW ; MICROMIXER ; PERFORMANCE ; REGIMES ; DESIGN ; SPLIT
WOS Research AreaEngineering, Environmental ; Engineering, Chemical
WOS SubjectEngineering
Funding OrganizationNational Natural Science Foundation of China [11672095, 11872165, 11802078] ; State Key Laboratory of Robotics and System (HIT) [SKLRS201803B] ; Opening fund of State Key Laboratory of Nonlinear Mechanics
Classification一类
Ranking2
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78453
Collection非线性力学国家重点实验室
Affiliation1.{Feng, Xiangsong、Ren, Yukun、Sun, Haizhen、Chen, Xiaoming、Zhang, Kailiang、Jia, Yankai、Hou, Likai、Xiao, Mingyu、Jiang, Hongyuan} Harbin Inst Technol, Sch Mech Engn, Harbin 150001, Heilongjiang, Peoples R China
2.{Ren, Yukun、Jiang, Hongyuan} Harbin Inst Technol, State Key Lab Robot & Syst, Harbin 150001, Heilongjiang, Peoples R China
3.{Ren, Yukun} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Feng XS,Ren YK,Sun HZ,et al. Effect of vortex on mass transport and mixing in microcapillary channels[J]. CHEMICAL ENGINEERING JOURNAL,2019,362:442-452.
APA Feng XS.,Ren YK.,Sun HZ.,Chen XM.,Zhang KL.,...&Jiang HY.(2019).Effect of vortex on mass transport and mixing in microcapillary channels.CHEMICAL ENGINEERING JOURNAL,362,442-452.
MLA Feng XS,et al."Effect of vortex on mass transport and mixing in microcapillary channels".CHEMICAL ENGINEERING JOURNAL 362(2019):442-452.
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