文献类型：期刊文献

英文题名：CFD investigation on the effect of Taylor vortex flow on the dynamic characteristics of single bubble based on Lagrangian method

作者：Yang, Hang[1];Li, Zhineng[1];Yang, Xiaoyong[1];Du, Shilong[1];Li, Danyang[2];Zhu, Yong[1];Bai, Zhishan[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]PetroChina Tarim Oilfield Co, Korla 841000, Peoples R China

年份：2025

卷号：87

起止页码：129

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20254619484345);WOS:【SCI-EXPANDED(收录号:WOS:001689627000001)】；

基金：This research was sponsored by Shanghai Sailing Program (21YF140950 0) , the National Natural Science Foundation of China (22308100) and 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; CFD-DPM; Bubble trajectory; Residence time; RSM analysis

摘要：The Taylor-Couette reactor can achieve precise control of heat transfer, mass transfer, and reactions, and it has been widely used in chemical production fields. In this paper, computational fluid dynamics-discrete phase model (CFD-DPM) simulation was used to study the dynamic characteristics of bubbles in the Taylor-Couette reactor, and the results were verified by high-speed camera experiments. The effects of rotational Reynolds number Re, axial Rea and bubble diameter dg were considered. Then a quadratic polynomial model of bubble residence time in the reactor was established using response surface methodology (RSM). The results show that in the range of rotational Re = 3482-10446, the movement trajectory of the bubble in the Taylor-Couette reactor followed the cylindrical helix. The increase of rotational Re can strengthen the downflow of Taylor vortex and reduced the ascent rate of bubbles, resulting in the increase of bubble residence time. And there was a synergetic effect of the rotational Re and dg on the residence time. Besides, Rea had positive effect on the bubble residence time under the condition of low level of Re (Re = 3482, 6964). Finally, the quadratic polynomial model was proven to be feasible to predict the residence time of bubble in the Taylor-Couette reactor. This study contributes to a deeper understanding of the bubble dynamics within Taylor reactors and offers theoretical guidance for their operation. (c) 2025 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.