Numerical and experimental investigations on liquid mixing in static micromixers

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• 作者：Engler ; Michael ; Kockmann ; Norbert ; Kiefer ; Thomas ; Woias ; Peter
• 关键词：T-shaped micromixers ; Microreactors ; Microreaction technology ; CFD-simulation
• 刊名：Chemical Engineering Journal
• 出版年：2004
• 出版时间：August 1, 2004
• 年：2004
• 卷：101
• 期：1-3
• 页码：315-322
• 全文大小：310 K

文摘

The importance of micromixers for microreaction technology demands some well-founded knowledge on the mixing behaviour of these devices. We show by numerical simulations as well as experimentally that increasing vorticity inside static T-shaped micromixers with rectangular cross-sections occurs even at low Reynolds numbers and that these effects can be used to improve the mixing quality. Hereby we distinguish between three flow regimes. Additionally, we give a new identification number for this kind of problems and we show that this number suits for static T-mixers. This is confirmed by simulations and experimental measurements.