重庆理工大学学报2024，Vol.38Issue(5)：327-334,8.DOI:10.3969/j.issn.1674-8425(z).2024.03.036
极板凹凸排布对微流通道流动性能影响研究
Study on the effect of convex and convex plate layout on the flow performance of microflow channels
摘要
Abstract
Currently, the electrolytic cell plates are mostly arranged in the form of ball-convex-ball-concave combination to enhance the disturbance-resistant ability inside the channel and improve the uniformity of fluid distribution. To improve the flow field distribution inside the channel, this paper compares the flow field distribution characteristics of five different ball-convex-ball-concave arrangements using numerical simulation. Our simulation results show the five different ball-concave-ball-convex unit combinations are characterized by vortex motion at the inlet of the channel, and the vortex motion at the inlet of the case A square spreading row in the arrangement mode is smaller;the different ball-convex-ball-convex arrangement modes will affect the distribution of the flow field, and the formation of continuous low-speed trailing area between the ball-convex-ball-convex units will form a large velocity gradient; the distribution of the temperature field and the distribution of the velocity are generally negatively correlated; the distribution of the temperature field and the velocity distribution of all channels is generally negatively correlated;the distribution of temperature field and fluid velocity distribution are largely negatively correlated; the flow channels of the five types of arrangement have negative velocity region with velocity component uw, which corresponds to a larger turbulent kinetic energy;the arrangement form of concave and convex cells inside the channel affects the local flow details and improves the uniformity of the flow field distribution, among which the uniformity of the internal flow field of the square paralleling column of case A is the best.关键词
压滤式电解槽/方形顺列排布/均匀性分析/循环流动Key words
press filter electrolytic cell/square straight arrangement/uniformity analysis/circulating flow分类
数理科学引用本文复制引用
刘祯,黄腾君,刘增鹏,齐诗佳,沈陈洋..极板凹凸排布对微流通道流动性能影响研究[J].重庆理工大学学报,2024,38(5):327-334,8.基金项目
湖北省自然科学基金创新发展联合基金项目(2022CFD083) （2022CFD083）
"新能源汽车与智慧交通"湖北省优势特色学科群(XKTD022023) （XKTD022023）
襄阳市科技计划项目(高新领域)重点项目(2021ABH004233) （高新领域）
