Effects of structural parameters on fluid flow and mixing performance in a curved microchannel with gaps and baffles

Jian Li, Guodong Xia, Yifan Li, Xinping Tian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We provide three-dimensional numerical simulations of mixing performance in a newly proposed micromixer with different structural parameters. The same amount of gaps and baffles are arranged along the curved channel within a certain distance. The effects of their structural parameters on mixing efficiency are presented, which include either the position and feature size of gaps and baffles, or the curvature radius of curved channel. The high efficiency mixing mechanism of the curved channel with gaps and baffles can attribute to the interaction of the increased contact area for premixed liquids, the jet and throttling effect over every unit of gap and baffle, the developing of the multidirectional vortices along the curved channel. The mixing index is sensitive to the width of the gaps and baffles for some Reynolds number ranges, but is not sensitive to the curvature radius of the curved channel. The characteristic of the pressure drop depending on Reynolds number is also investigated in order to keep an appropriate balance with mixing property.

Original languageEnglish
Title of host publication7th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion
Pages96-101
Number of pages6
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event7th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2012 - Xi'an, Shaanxi Province, China
Duration: 26 Oct 201230 Oct 2012

Publication series

NameAIP Conference Proceedings
Volume1547
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2012
Country/TerritoryChina
CityXi'an, Shaanxi Province
Period26/10/1230/10/12

Keywords

  • curved channel
  • gaps and baffles
  • mixing index
  • numerical analysis
  • structural parameters

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