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Title: Convective-diffusive transport in parallel lamination micromixers
Authors: Wu, Zhigang
Nguyen, Nam-Trung
Keywords: DRNTU::Engineering::Mechanical engineering
Issue Date: 2004
Source: Wu, Z. G., & Nguyen, N. T. (2004). Convective-diffusive transport in parallel lamination micromixers. Microfluidics and Nanofluidics, 1(3), 208-217.
Series/Report no.: Microfluidics and nanofluidics
Abstract: Effective mixing and controllable concentration gradient are important in microfluidic applications. From the scaling law, decreasing the mixing length can shorten the mixing time and enhance the mixing quality. The small sizes lead to small Reynolds numbers and a laminar flow in microfluidic devices. Under this conditions, molecular diffusion is the main transport effect during the mixing process. In this paper, we present complete two-dimensional analytical models of convective-diffusive transport in parallel lamination micromixers for a binary system. An arbitrary mixing ratio between solute and solvent is considered. The analytical solution indicates the two important parameters for convective-diffusive transport in microchannels: the Peclet number and the dimensionless mixing length. Furthermore the model can also be extended to mixing of multiple streams - a common and effective concept of parallel mixing in microchannels. Using laser machining and adhesive bonding polymeric micromixers were fabricated and tested to verify the analytical results. The experimental results agree well with the analytical models.
DOI: 10.1007/s10404-004-0011-x
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2004 Springer-Verlag. This is the author created version of a work that has been peer reviewed and accepted for publication by Microfluidics and Nanofluidics, Springer-Verlag. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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