A fast design method for passive micromixer with angled bend

  • Tianyi Su
  • Kai ChengEmail author
  • Junyao Wang
  • Zheng Xu
  • Wei Dai
Technical Paper


In this paper, the mixed process is divided into the on-way mixing and local mixing, and allows the local mixing to be transformed to equivalent on-way mixing. By analysis of numerical simulation, on the one hand, the on-way mixing efficiency is proportional to the diffusion rate, density ratio, and is also inversely proportional to the channel width and flow velocity. On the other hand, equivalent on-way mixing length is set as the increased channel length caused by the angled bend, which is proportional to the flow velocity and the bend angle, and is also inversely proportional to the channel width. Furthermore, mixing efficiency calculation formula is presented, and the steps of designing a micro-mixer quickly is summarized, which are suitable for any passive micromixer with angled bends.



This project is supported by the National Natural Science Foundation of China (Grant No. 51505077), the Project Agreement for Science and Technology Development of Jilin Province (20170520099JH) and the Science and Technology Innovation Development Project of Jilin City (201750230, 20166013, 20166012).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Tianyi Su
    • 1
    • 2
  • Kai Cheng
    • 1
    Email author
  • Junyao Wang
    • 2
  • Zheng Xu
    • 3
  • Wei Dai
    • 4
  1. 1.School of Mechanical and Aerospace EngineeringJilin UniversityChangchunChina
  2. 2.School of Mechanical EngineeringNortheast Electric Power UniversityJilinChina
  3. 3.Key Laboratory for Micro/Nano Technology and System of Liaoning ProvinceDalian University of TechnologyDalianChina
  4. 4.Wulajie Manchu Town Central Primary SchoolJilinChina

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