用改进的内外迭代法数值模拟Rushton涡轮搅拌槽流场  

Numerical Simulation of the Whole Flow Field in a Stirred Tank with a Rushton Turbine Using the Improved InnerOuter Iterative Procedure

作　　者：王卫京[1] 毛在砂[1] 

机构地区：[1]中国科学院过程工程研究所,北京100080

出　　处：《过程工程学报》2002年第3期193-198,共6页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:29792074);中国石化集团资助项目

摘　　要：在有挡板的搅拌槽中,受搅拌桨驱动的液体在挡板的作用下会产生复杂的三维湍流流动.利用“快照”法思路和改进的内外迭代法及ke湍流模型对Rushton涡轮有挡板的搅拌槽进行了整体数值模拟. 同文献中的实验数据进行了比较,模拟值同实验值基本吻合. 改进后的内外迭代法不依赖经验公式和实验数据,有一定的通用性.In baffled stirred vessels, the rotating impeller generates complex three-dimensional turbulent flow. In this article, the whole flow field in the baffled tank with a Rushton disk turbine was numerically simulated using the improved innerouter iterative procedure and snap-shot method with the ke turbulence model. As compared with published experimental data, the model prediction agrees well with the experimental data. The improved innerouter iterative algorithm demands no empirical formula and experimental data, and the approach seems generally applicable for simulating stirred tanks under turbulent conditions.

关 键 词：搅拌槽Rushton涡轮 内外迭代法 数值模拟 κ-ε湍流模型 

分 类 号：TQ018[化学工程] TQ051.7