文献类型：期刊文献

英文题名：Visualization investigation of bubble dynamic characteristics for different motion mode in a Taylor-Couette reactor

作者：Du, Shilong[1];Yang, Xiaoyong[1];Zhu, Yong[1];Yan, Shenglin[2];Bai, Zhishan[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, POB 200237, Shanghai, Peoples R China;[2]Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, POB 200240, Shanghai, Peoples R China

年份：2025

卷号：506

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20250617806493);WOS:【SCI-EXPANDED(收录号:WOS:001422673400001)】；

基金：This work was supported by the National Key R & D Program of China [No. 2023YFC3008703] ; National Natural Science Foundation of China [22308100] ; the State Key Laboratory of Chemical Engineering [SKL ChE-23Z01] , for which the authors express their appreciation.

语种：英文

外文关键词：Taylor-Couette reactor; Visualization experiment; Motion mode; Bubble dynamic characteristics

摘要：Taylor-Couette reactor is a potential equipment for enhancing mass transfer, heat transfer and reaction in the chemical field by modifying the gas-liquid flow behavior. In this paper, visual experimental measurements of bubble motion in the reactor were conducted using high-speed camera. Moreover, with the help of CFD and force analysis, the motion mechanism of bubble was also carried out in the reactor. The results show that in the range of rotational Re from 0 to 17410, bubbles in the annulus have three motion forms, namely free rise, spiral rise and banded motion. When rotational Re exceeds the critical value of 10446, the bubble motion is transformed into the banded motion, trapping bubbles between Taylor vortex pairs near the inner cylindrical. This transition occurs due to the equilibrium between buoyancy and axial drag forces. In addition, the equation of bubble motion in Taylor-Couette reactor is established. These provide a key reference for the research and development of high-efficiency absorption and reaction strengthening equipment.