Version 1
: Received: 25 October 2019 / Approved: 27 October 2019 / Online: 27 October 2019 (11:11:58 CET)
How to cite:
Kang, D.J. Effects of Channel Wall Twisting on the Mixing in a T-Shaped Micro-Channel. Preprints2019, 2019100306. https://doi.org/10.20944/preprints201910.0306.v1
Kang, D.J. Effects of Channel Wall Twisting on the Mixing in a T-Shaped Micro-Channel. Preprints 2019, 2019100306. https://doi.org/10.20944/preprints201910.0306.v1
Kang, D.J. Effects of Channel Wall Twisting on the Mixing in a T-Shaped Micro-Channel. Preprints2019, 2019100306. https://doi.org/10.20944/preprints201910.0306.v1
APA Style
Kang, D.J. (2019). Effects of Channel Wall Twisting on the Mixing in a T-Shaped Micro-Channel. Preprints. https://doi.org/10.20944/preprints201910.0306.v1
Chicago/Turabian Style
Kang, D.J. 2019 "Effects of Channel Wall Twisting on the Mixing in a T-Shaped Micro-Channel" Preprints. https://doi.org/10.20944/preprints201910.0306.v1
Abstract
A new design scheme is proposed for twisting the walls of a microchannel, and its performance is demonstrated numerically. The numerical study was carried out for a T-shaped microchannel with twist angles in the range of 0 to 34π. The Reynolds number range was 0.15 to 6. The T-shaped microchannel consists of two inlet branches and an outlet branch. The mixing performance was analyzed in terms of the degree of mixing and relative mixing cost. All numerical results show that the twisting scheme is an effective way to enhance the mixing in a T-shaped microchannel. The mixing enhancement is realized by the swirling of two fluids in the cross section and is more prominent as the Reynolds number decreases. The twist angle was optimized to maximize the DOM, which increases with the length of the outlet branch. The twist angle was also optimized in terms of the relative mixing. The two optimum twisting angles are generally not coincident. The optimum twist angle shows a dependence on the length of the outlet branch but it is not affected much by the Reynolds number.
Keywords
T-shaped microchannel; degree of mixing; twisting angle; optimization
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.