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Microsystem Technologies
Erschienen in: Microsystem Technologies 6/2018

24.11.2017 | Technical Paper

3D micromixers based on Koch fractal principle

verfasst von: Xueye Chen, Shuai Zhang

Erschienen in: Microsystem Technologies | Ausgabe 6/2018

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Abstract

In this paper, we mainly study the effect of the Koch fractal microchannel on the mixing efficiency. Using the Koch fractal principle can effectively change the geometric shape of the microchannel, and increase the convective contact area of the microfluid, enhance chaotic convection. Changing the geometric shape of the microchannel is an effective way to improve the mixing efficiency of the micromixer. So, it is of great significance to study the influence of fractal principle on the mixing performance of microchannel. This paper introduces the design process of the fractal microchannel. The effects of different microchannel heights and different Reynolds (Res) on the mixing efficiency are studied, we also compared the mixing efficiency of the Primary fractal and secondary fractal with different Res. When the microchannel height is 0.5 mm, the mixing efficiency exceeds 90%. In the main section of the Koch fractal channel, the vortex region produced by the fractal microchannel is an important factor to improve the mixing efficiency of the micromixer. As its excellent mixing performance, the micromixers based on the fractal principle will have great potential in chemical engineering and bioengineering.
Vorheriger Artikel Operational enhancements for small scale thermal energy storage devices
Nächster Artikel Design optimisation of high sensitivity MEMS piezoresistive intracranial pressure sensor using Taguchi approach

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Metadaten
Titel
3D micromixers based on Koch fractal principle
verfasst von
Xueye Chen
Shuai Zhang
Publikationsdatum
24.11.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Microsystem Technologies / Ausgabe 6/2018
Print ISSN: 0946-7076
Elektronische ISSN: 1432-1858
DOI
https://doi.org/10.1007/s00542-017-3637-9

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