重庆理工大学学报（自然科学版）2025，Vol.39Issue(3)：195-201,7.DOI:10.3969/j.issn.1674-8425(z).2025.02.024
双层错位穿流桨槽内流场分析及设计优化
Analysis and design optimization of flow field in double-layer dislocated-punched impeller groove
摘要
Abstract
To improve the mixing efficiency in the mixing process,we propose a type of dislocated-punched impeller and build a flow field model based on computational fluid dynamics(CFD).The effects of the installation position and punched hole of the dislocated-punched impeller on the flow field are studied,the changes of the flow field under different working conditions are compared,and the working conditions of the dislocated-punched impeller are clarified.The relationship between the perforation distribution and power on the dislocated-punched impeller is explored and multiple linear regression analysis is employed to determine the punched location.Taking the mixing efficiency as the evaluation index of the mixing capacity of the impellers,the mixing efficiency of the dislocated-punched impeller,the dislocated-bladed impeller and the Rushton impeller is compared and analyzed.It is found that the dislocated-punched impeller has a strong mixing capacity.Moreover,the dislocated-punched impeller has a simple structure and lower power requirements,reducing the mixing time.The punched-hole should be evenly distributed on the impeller blades as much as possible in order to effectively exert the punched hole effect.The mixing efficiency is improved by 32％compared to Rushton paddle.Our research may provide another agitator choice with a better mixing efficiency and a higher energy efficiency for reactor design.关键词
错位穿流桨/流场/混合效率/CFD/多元线性回归Key words
dislocated-punched Rushton impeller/flow field/mixing efficiency/CFD/multiple linear re-gression分类
化学工程引用本文复制引用
伍熙,姜帅,杜玮,陈伟,李红军..双层错位穿流桨槽内流场分析及设计优化[J].重庆理工大学学报（自然科学版）,2025,39(3):195-201,7.基金项目
国家自然科学基金青年科学基金项目(52108221) （52108221）
冶金装备及其控制教育部重点实验室开放基金项目(MEC0F2022B05) （MEC0F2022B05）
