Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 362, Issue 1818, Pages 971-986Publisher
ROYAL SOC LONDON
DOI: 10.1098/rsta.2003.1357
Keywords
mixing; microfluidics; chaotic advection; dispersion; microchemical
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An analytical model is presented for the three-dimensional flow in the recently introduced staggered herringbone mixer for microchannels. In this model, the flow in the cross-section of the channel is treated as a lid-driven cavity flow. The model is shown to reproduce the advection patterns that were observed experimentally in the staggered herringbone mixer. The model is then used to study the quality of mixing in this flow as a function of geometry. Analysis is performed with Poincare maps, mixing simulations, and residence time distributions. A range of optimal geometries is identified.
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