Journal
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
Volume 150, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2020.107864
Keywords
OpenFOAM; Micromixer; Micropump; Electrode heating; Mixing quality
Categories
Ask authors/readers for more resources
Micro-mixers, due to their vast applications in different fields have been of great interest to the researchers in recent years. In this study, a transient two-dimensional solver was developed in the open-source code, OpenFOAM to simulate electrothermal effect in a micro mixer. Then, as the first step, the obtained mixing quality and fluid velocity of three different geometries with various electrode arrangements were compared. According to the results, the micromixer with a trapezoidal chamber and a circular cavity has the highest mixing and pumping efficiency. Then, in the selected micromixer, the effect of different parameters was studied such as voltage, electrode heating, electrical conductivity and size of electrode installed on the cavity and channel. The results showed that, in some phase differences, increasing the voltage improves the quality of mixing, and in others, it has an inverse effect. In addition, it is found that increasing size of electrodes in the cavity, decreases the fluid velocity and increases the mixing quality. Finally, by increasing voltage on different electrodes, a remarkable micro-mixer with a mixing quality of 99 % and an average fluid velocity of 64 mu m/s was obtained.
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