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A fast design method for passive micromixer with angled bend

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Abstract

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.

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Acknowledgements

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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Authors and Affiliations

  1. School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130000, China

    Tianyi Su & Kai Cheng

  2. School of Mechanical Engineering, Northeast Electric Power University, Jilin, 132012, China

    Tianyi Su & Junyao Wang

  3. Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116085, China

    Zheng Xu

  4. Wulajie Manchu Town Central Primary School, Longtan District, Jilin, 132227, China

    Wei Dai

Authors
  1. Tianyi Su
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  2. Kai Cheng
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  3. Junyao Wang
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  4. Zheng Xu
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  5. Wei Dai
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Correspondence to Kai Cheng.

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Su, T., Cheng, K., Wang, J. et al. A fast design method for passive micromixer with angled bend. Microsyst Technol 25, 4391–4397 (2019). https://doi.org/10.1007/s00542-019-04433-z

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  • DOI: https://doi.org/10.1007/s00542-019-04433-z

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