Mixing performance of asymmetric split and recombine micromixer with fan-shaped cavity

Guodong Xia*, Jian Li, Hongjie Wu, Mingzheng Zhou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A novel design of passive micromixer based on mechanism of planar asymmetric split and recombine(P-ASAR) of fluid stream was proposed. Mixing performance of this micromixer was analyzed numerically with three-dimensional Navier-Stokes equations. The steady laminar flow was solved by using the finite-volume method and SIMPLE algorithm. The mixing index as the measure of mixing performance, was investigated at a range of Reynolds numbers(1-80). The result showed significant increase of mixing index for the P-ASAR micromixer with fan-shaped cavity in the sub-channel. The geometrical parameters of fan-shaped cavity affected mixing index of this type of micromixer. With mixing intensity and pump power consumption in mind, mixing index of the P-ASAR micromixer with fan-shaped cavity could reach around 78% when the width ratio of major sub-channel to fan-shaped cavity channel is 1/3.

Original languageEnglish
Pages (from-to)1219-1225
Number of pages7
JournalHuagong Xuebao/CIESC Journal
Volume62
Issue number5
DOIs
Publication statusPublished - May 2011
Externally publishedYes

Keywords

  • Asymmetric split and recombine
  • Fan-shaped cavity
  • Mixing performance
  • Numerical simulation

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