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Micromachines 2018, 9(2), 70;

Optimization of Wavy-Channel Micromixer Geometry Using Taguchi Method

Department of Industrial and Information Systems Engineering, Chonbuk National University, 567 Baekje-daero, Deockjin-gu, Jeonju 54896, Korea
Department of Mining and Materials Engineering, McGill University, Adams Building #115, 3450 University Street, Montreal, QC H3A 2A7, Canada
This paper is an extended version of our paper published in the FAIM 2013–23rd International Conference on Flexible Automation & Intelligent Manufacturing, was held in Porto, Portugal, 26–28 June 2013.
Author to whom correspondence should be addressed.
Received: 17 January 2018 / Revised: 29 January 2018 / Accepted: 2 February 2018 / Published: 6 February 2018
(This article belongs to the Special Issue Passive Micromixers)
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The micro-mixer has been widely used in mixing processes for chemical and pharmaceutical industries. We introduced an improved and easy to manufacture micro-mixer design utilizing the wavy structure micro-channel T-junction which can be easily manufactured using a simple stamping method. Here, we aim to optimize the geometrical parameters, i.e., wavy frequency, wavy amplitude, and width and height of the micro channel by utilizing the robust Taguchi statistical method with regards to the mixing performance (mixing index), pumping power and figure of merit (FoM). The interaction of each design parameter is evaluated. The results indicate that high mixing performance is not always associated with high FoM due to higher pumping power. Higher wavy frequency and amplitude is required for good mixing performance; however, this is not the case for pumping power due to an increase in Darcy friction loss. Finally, the advantages and limitations of the designs and objective functions are discussed in the light of present numerical results. View Full-Text
Keywords: geometrical design; micromixer; optimum; Taguchi; wavy-channel geometrical design; micromixer; optimum; Taguchi; wavy-channel

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Solehati, N.; Bae, J.; Sasmito, A.P. Optimization of Wavy-Channel Micromixer Geometry Using Taguchi Method. Micromachines 2018, 9, 70.

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