https://scholars.lib.ntu.edu.tw/handle/123456789/576128
標題: | Design and evaluation of a 3D multi-manifold micromixer realized by a double-Archimedes-screw for rapid mixing within a short distance | 作者: | Shin C.-S Baldeck P.L Nie Y.-M Lee Y.-H Lin Z.-D Chiang C.-C Lin C.-L. CHOW-SHING SHIN |
關鍵字: | Mixers (machinery); Reynolds number; Screws; Archimedes screws; Design and evaluations; Experimental demonstrations; Fluid circulation; Interfacial areas; Mixing efficiency; Split and recombinations; Two-photon stereolithography; Mixing | 公開日期: | 2021 | 卷: | 120 | 起(迄)頁: | 59-66 | 來源出版物: | Journal of the Taiwan Institute of Chemical Engineers | 摘要: | Recent developments in 3D micromixers promise to accomplish satisfactory mixing for applications in microchemical process, biomicrofluidic analyses, μ-TAS, etc. However, the complicated 3D architecture employed to ensure thorough mixing might reduce fluid circulation due to the space for fluid flowing becomes narrow. In this study, we developed a single 3D multi-manifold micromixer composed of a double-Archimedes-screw for rapidly mixing within a short distance. Archimedes screw is well known for its fluid circulation under stable flow. The mixing strategy is based on split-and-recombination for increasing the interfacial area, and the 3D flow rotation for generating omnidirectional momentum-changes during the fluid propagation. With the spiral conformation, the Archimedes-screw micromixer (ASM) can substantially enhance fluid circulation. Numerical simulations used to help to design the optimal screw-turn show that satisfactory mixing efficiency can achieve at the distance of approximately twice the microchannel width. The ASM characteristics, such as pressure loss, ratio of cross-sections, and Reynolds number (Re) were evaluated. Experimental demonstration by an ASM fabricated by two-photon stereolithography showed mixing result in good agreement with the simulation findings. ? 2021 Taiwan Institute of Chemical Engineers |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104111189&doi=10.1016%2fj.jtice.2021.03.028&partnerID=40&md5=f312156ceaa366686605719b8ee46356 https://scholars.lib.ntu.edu.tw/handle/123456789/576128 |
ISSN: | 18761070 | DOI: | 10.1016/j.jtice.2021.03.028 |
顯示於: | 機械工程學系 |
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