Journal
PHYSICS OF FLUIDS
Volume 34, Issue 7, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0098128
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [11874157, 11964032]
- Science and Technology Program of Guangzhou [2019050001]
- Science and Technology Project of Guangdong Province [2019A1515011014]
- Key Project of the Education Department of Guangdong Province [2018KZDXM025, 2019GKTSCX009]
- Open Fund of Guangdong Provincial Key Laboratory of Information Photonics Technology [GKPT20-12]
Ask authors/readers for more resources
This study presents a novel micromixer for efficient and controllable mixing based on photothermal vortices. The vortices, generated from an array of linear heat sources excited by a laser, provide stable disturbance to fluid interfaces and enhance the mixing efficiency. The study reveals the interactions between vortices and the mixing mechanism of fluids, and explores the effects of various factors on the mixing performance.
The efficient and homogeneous mixing of fluids is crucial for microfluidic applications, such as chemical reactions, biological analyses, and material synthesis. This study designs a novel micromixer for efficient and controllable mixing based on photothermal vortices, which are generated from an array of linear heat sources as excited by a laser. The mixing performance is theoretically investigated using a multiphysics-coupled system based on the finite element method. We reveal the interactions between vortices and the mixing mechanism of fluids. The vortices provide a stable strength and adjustment ability to disturb fluid interfaces and enhance the mixing efficiency. Additionally, the effects of the vertical distance between two waveguides, optical power, and inlet mean velocity on the mixing performance are explored. As a result, the calculated mixing efficiency is 99.89%, which could be regarded as an important reference of the micromixer with an excellent mixing performance. The purpose of this study is to provide a new method for rapid, efficient, and controllable mixing for a myriad of chemical research and biotechnological applications. Published under an exclusive license by AIP Publishing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available