化工学报2013，Vol.64Issue(7)：2344-2352,9.DOI:10.3969/j.issn.0438-1157.2013.07.006
侧进式搅拌釜内气液两相流的数值模拟
Gas-liquid flow dynamics simulation in side-entering stirred tank
陈佳 1肖文德1
作者信息
- 1. 华东理工大学化学工程联合国家重点实验室,上海200237
- 折叠
摘要
Abstract
Gas-liquid turbulent flow in a side-entering stirred tank with φ1.5 m× 1.2 m was simulated with computational fluid dynamics (CFD).Three interface boundary conditions (pressure-outlet,velocity-inlet and degassing boundary) and two drag force models (standard S-N model and Brucato-Tsuchiya model) were presented and respectively coupled with the Euler-Euler model and dispersed two-phase k-ε turbulence model by using user define function (UDF).The impeller power number,total gas holdup and gas phase distribution in the tank were calculated and compared with the measurements of the cold model experiments to investigate the effect of boundary condition of gas-liquid interface and drag force model on prediction accuracy.The results indicated that the predicted results calculated with the CFD model coupled with the Brucato-Tsuchiya model and adopting the velocity-inlet or degassing boundary condition,were in agreement with the experimental results,much better than the pressure-outlet boundary condition.关键词
侧进式搅拌釜/气液两相流/计算流体力学/边界条件/曳力模型Key words
side-entering stirred tank/ gas-liquid flow/ computational flow dynamics / boundary condition / drag force model分类
化学化工引用本文复制引用
陈佳,肖文德..侧进式搅拌釜内气液两相流的数值模拟[J].化工学报,2013,64(7):2344-2352,9.
