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CFD study of flow-diffusion process in Y-shape micromixer

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Abstract

A CFD simulation was carried out to investigate the mixing process in a Y-shape micromixer with the software Fluent 6.3. The definition of the “diffusion angle” is proposed to describe the molecular diffusion process associated with the flow at low Reynolds number. The linear relationship between the diffusion angle and the Peclet number (Pe) is determined by both theoretical analysis and numerical simulation. Moreover, the simulation results reveal that the diffusion angle is only related to the Peclet number whilst it is irrelevant to the changes of Re (Reynolds number) and Sc (Schmidt number). The range of Peclet number and Reynolds number for experimental measurement are also suggested as Pe≤10000 and Re≤10.

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Authors and Affiliations

  1. School of Energy Science and Engineering, Central South University, Changsha, 410083, China

    Zhuo Chen  (陈卓), Rui-qi Zhang  (张睿琦) & Xiao-na Wang  (王晓娜)

Authors
  1. Zhuo Chen  (陈卓)
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  2. Rui-qi Zhang  (张睿琦)
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  3. Xiao-na Wang  (王晓娜)
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Corresponding author

Correspondence to Zhuo Chen  (陈卓).

Additional information

Foundation item: Project(51106184) supported by the National Natural Science Foundation of China

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Chen, Z., Zhang, Rq. & Wang, Xn. CFD study of flow-diffusion process in Y-shape micromixer. J. Cent. South Univ. 23, 969–974 (2016). https://doi.org/10.1007/s11771-016-3144-7

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  • DOI: https://doi.org/10.1007/s11771-016-3144-7

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