Efficient low Reynolds number micromixer with magic cube structure

doi:10.37188/OPE.20233119.2850

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Efficient low Reynolds number micromixer with magic cube structure
	X. Li and Y. Wu
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2023
卷号	31 期号:19 页码:2850-2856
ISSN号	1004924X
DOI	10.37188/OPE.20233119.2850
英文摘要	To integrate efficient mixing functions inside small chips with variable Reynolds numbers， this study developed a strategy for designing micromixers by increasing the concentration difference through matching contact surfaces based on Fick's law and Einstein's equation for Brownian motion. Subsequently， the Coanda effect was extended by analyzing the flow direction of the fluid over the channel surface and abstracting four functions from specific microchannel modules. These functions were used to predict and modulate the concentration gradient and construct the micromixer. Two three-dimensional structures of passive micromixers were designed using four functional modules to rotate and adjust the fluid interface. A three-dimensional Navier-Stokes system of equations was used for numerical analysis， and a micromixer was constructed via soft lithography for experimental verification. The experimental and simulation results showed that the designed micromixer consistently exhibits a mixing efficiency of 94%-99% at 3.3 mm， which is 22 times the hydraulic diameter length， for Reynolds numbers ranging from 0.1 to 100. This demonstrates a clear advantage over existing methods at an equal hydraulic diameter. Furthermore， the structure is easy to integrate on a chip， indicating the superiority of the modular design. © 2023 Chinese Academy of Sciences. All rights reserved.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67646]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Li and Y. Wu. Efficient low Reynolds number micromixer with magic cube structure[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2023,31(19):2850-2856.
APA	X. Li and Y. Wu.(2023).Efficient low Reynolds number micromixer with magic cube structure.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,31(19),2850-2856.
MLA	X. Li and Y. Wu."Efficient low Reynolds number micromixer with magic cube structure".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 31.19(2023):2850-2856.