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Proceedings Paper

Mixing of two fluid streams in a microchannel using the Taylor-Aris dispersion effect
Author(s): Hengzi Wang; Pio Iovenitti; Erol C. Harvey; Syed Masood
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Paper Abstract

Taylor-Aris dispersion is an unwanted effect in some applications, such as chromatography, because of its rapid dispersion along channel axis direction to cause the difficulties to separation. However, this effect can be used in solving mixing problems. In this presentation, the authors studied mixing of two streams of food dye solution in a microchannel. The two liquids sandwiched in the axis direction, and due to non-slip boundary condition, the slugs of liquids stretched and thus increase their interfacial area. This phenomena was firstly studied by Taylor about the dispersion of solute in a circular capillary, and then improved by Aris. Numerical analysis was applied to design mixing section in microchannels, and simplified experiments were conducted to illustrate the concept.

Paper Details

Date Published: 14 November 2002
PDF: 6 pages
Proc. SPIE 4937, Biomedical Applications of Micro- and Nanoengineering, (14 November 2002); doi: 10.1117/12.469082
Show Author Affiliations
Hengzi Wang, Swinburne Univ. of Technology (Australia)
Pio Iovenitti, Swinburne Univ. of Technology (Australia)
Erol C. Harvey, Swinburne Univ. of Technology (Australia)
Syed Masood, Swinburne Univ. of Technology (Australia)

Published in SPIE Proceedings Vol. 4937:
Biomedical Applications of Micro- and Nanoengineering
Dan V. Nicolau, Editor(s)

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