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Velocity measurement of flow in the microchannel with barriers using Micro-PIV

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Abstract

An important application field of microfluidics is in microchemistry. Reactions of premixed reactants call for efficient designs of micromixers. This paper presents the investigations of a relatively little known micromixer embedded with barriers. The micro-resolution particle image velocimetry is used to measure the flow in the micromixer. The obtained results are in good agreement with numerical simulation. The results show that the barriers embedded in the microchannel lead to a large variation of velocity gradient, and make the fluid stretch and fold in the micromixer, which results in a substantial enhancement of the mixing efficiency.

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Authors and Affiliations

  1. Department of Mechanics, State Key Laboratory of Fluid Power Trans. and Contr., Zhejiang University, 310027, Hangzhou, China

    Wang R. J., Lin J. Z. & Xie H. B.

  2. School of Mechanical Engineering, Zhejiang University of Sci. and Tech., 310012, Hangzhou, China

    Wang R. J.

Authors
  1. Wang R. J.
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  2. Lin J. Z.
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  3. Xie H. B.
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Additional information

Ruijin Wang: He received his Master degree in Mechanical Engineering in 1990 from Zhejiang University of Technology. He received his Ph. Dr. in Fluid Mechanics in 2005 from Zhejiang University. He worked in Department of Mechanical Engineering, Zhejiang University of Science and Technology as an Associate Professor in 2000. He works in Institute of Fluid Engineering, Zhejiang University as an advanced visiting Researcher in recent years. His research interests are Microfluidics and Nano-technologies.

Jianzhong Lin: He received his Master and Doctor degrees in Fluid Mechanics in 1986 from Zhejiang University and in 1991 from Beijing University, respectively. He is a Professor and the Director of the Institute of Fluid Engineering now. His research interests are Microfluidics mechanics, multiphase flow and turbulence.

Haibo Xie: He received his Ph. Dr. in Mechatronics in 2004 from Zhejiang University. He worked in the state key laboratory of fluid power transmission and control of Zhejiang University as a post doctor in 2004. His research interests are MEMS, Microfluidics and Micro-PIV.

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Wang, R.J., Lin, J.Z. & Xie, H.B. Velocity measurement of flow in the microchannel with barriers using Micro-PIV. J Vis 9, 209–217 (2006). https://doi.org/10.1007/BF03181764

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  • DOI: https://doi.org/10.1007/BF03181764

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