Computational Simulation of Enhancement ofMixing efficiency of Micromixer

Kanaparthi, Abhishek and Kumar, Laxman K (2016) Computational Simulation of Enhancement ofMixing efficiency of Micromixer. In: Manipal Research Colloquium, 04/04/2016, Manipal.

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The mixing of the fluids flowing through microchannel is important in a variety of applications: e.g., in the homogenization of solutions of reagents used in chemical reactions or in the control of dispersion of material. • One of the serious limitations of microfluidic transport is that the flows are always in the laminar regime and it is difficult to generate turbulent or chaotic flow under normal circumstances. • The recent technological trends show that the microfluidic technologies requirea quick transport along with efficient mixing, heat and mass transfer to improve the overall efficiency. • In passive chaotic micromixers, various principles and devices have been proposed to strengthen the convective transport of fluids: (i) hydrodynamic focusing [1]; (ii) split-and-recombine [2]; (iii) lamination [3], and chaotic advection [4]. • In this article, we computationally explore the herringbone mixer, which was first shown in [4] as their pioneering work. Physically, uniaxial flows inside microfluidic channels are of low Reynolds number where the mixing is purely advective. A slow advective mixing compared to the convection of material along the channel leads to increase in the length of the mixer

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Choatic mixing, microfluidics, microchannels, computational fluid dynamics
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Chemical
Depositing User: MIT Library
Date Deposited: 12 Jan 2017 15:46
Last Modified: 12 Jan 2017 15:46

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