化学工程2025，Vol.53Issue(4)：43-47,71,6.DOI:10.3969/j.issn.1005-9954.2025.04.008
圆盘涡轮搅拌器的气液混合特性CFD分析
CFD analysis of gas-liquid mixing characteristics of disc turbine agitator
摘要
Abstract
The gas-liquid mixing effect of four disc turbine stirrers in 300 L gas-liquid mechanically stirred reactor was investigated using a combinations of numerical simulations and experimental methods,and the aeration power consumption,gas-phase content and volumetric oxygen mass-transfer coefficient of the paddles were specifically analysed.The results show that the stirring power of different disc turbine stirrers varies greatly during aeration,and the gas content per unit power of each stirring paddle is in descending order:asymmetric parabolic blade＞six-arrow blade＞six-curved blade＞six-straight blade.Among the four commonly used oxygen transfer models,the permeation model and slip velocity model predict the volumetric oxygen transfer coefficients of each paddle more accurately,and the volumetric oxygen transfer coefficients per unit of power are from large to small:asymmetric parabola blade＞six-arrow blade＞six-curved blade＞six-straight blade.The numerical simulation results are in good agreement with the experimental results,which can provide some reference value for the optimisation and development of more efficient performance stirring paddles.关键词
圆盘涡轮搅拌器/数值模拟/气液机械搅拌反应器/气液两相流/氧传质模型/传质系数Key words
disc turbine stirrer/numerical simulation/gas-liquid mechanically stirred reactor/gas-liquid two-phase flow/oxygen transfer model/transfer coefficient分类
化学化工引用本文复制引用
刘会鹏,杨闻,邰燕翔,洪厚胜,郭会明..圆盘涡轮搅拌器的气液混合特性CFD分析[J].化学工程,2025,53(4):43-47,71,6.基金项目
国家高技术研究发展计划项目(2012AA021201) （2012AA021201）
