NDLI: Convective–diffusive transport in parallel lamination micromixers

Content Provider	Springer Nature Link
Author	Wu, Zhigang Nguyen, Nam Trung
Copyright Year	2004
Abstract	Effective mixing and a 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 these conditions, molecular diffusion is the main transport effect during the mixing process. In this paper, we present complete 2D 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 the 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.
Starting Page	208
Ending Page	217
Page Count	10
File Format	PDF
ISSN	16134982
Journal	Microfluidics and Nanofluidics
Volume Number	1
Issue Number	3
e-ISSN	16134990
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-11-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Micromixer Mass transfer Diffusion Parallel lamination Fluorescent measurement
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Materials Chemistry Condensed Matter Physics Electronic, Optical and Magnetic Materials

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