NDLI: The effect of chaotic advection on mixing degree and pressure drop of non-Newtonian fluids flow in curved micromixers

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The effect of chaotic advection on mixing degree and pressure drop of non-Newtonian fluids flow in curved micromixers

Content Provider	Springer Nature Link
Author	Khezerloo, Marzieh Gharraei, Reza Baheri Islami, Sima
Copyright Year	2016
Abstract	Since the majority of fluids in engineering and biology applications are non-Newtonian, a numerical investigation was performed on the mixing of non-Newtonian fluids. Chaotic advection is one of the useful mechanisms to enhance the mixing performance which can be generated using curved micromixers. Therefore, mixing of non-Newtonian fluids in curved micromixers was studied in this study. The power-law fluids with power-law indices between 0.49 and 1 and Reynolds numbers between 0.1 and 300 were investigated. Open source CFD code of OpenFOAM was utilized to simulate mixing process in micromixers. The results showed that the mixing index decreases and dimensionless pressure drop increases by decreasing the power-law index. The chaotic advection and mixing index increase by increasing the Reynolds number for all values of power-law index. In addition, micromixers with sharp turns in their geometries yielded efficient mixing performance for low power-law indices and low Reynolds numbers.
Starting Page	813
Ending Page	831
Page Count	19
File Format	PDF
ISSN	16785878
Journal	Journal of the Brazilian Society of Mechanical Sciences and Engineering
Volume Number	39
Issue Number	3
e-ISSN	18063691
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-12-02
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chaotic advection Curved micromixer Mixing index Mechanical Engineering Non-Newtonian fluid
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering

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