化工进展Issue(10)：2319-2323,5.DOI:10.3969/j.issn.1000-6613.2013.10.011
鼓泡塔气液两相流内部流场的流体力学特性
Fluid mechanics behavior of gas-liquid flow in bubble columns inner flow field
摘要
Abstract
Computational fluid dynamics (CFD) was used to simulate the fluid mechanics behavior with four superficial gas velocities in the inner flow field of bubble columns. The internal distribution of overall gas hold-up and the change of liquid phase velocity in the shaft cross-section with time were analyzed. At different superficial gas velocities,local gas hold-up and liquid phase velocity radical distribution at different heights were compared. Overall gas hold-up increased quickly with time first and then stabilized. At the same height,local gas hold-up increased with increasing superficial gas velocity. When H/D<3,liquid phase showed single-phase circulation flow;when H/D=3,it showed dual-phase circulation flow,which was more complex.关键词
计算流体力学/表观气速/气含率/液相速度Key words
computational fluid dynamic/superficial gas velocity/gas holdup/liquid phase velocity分类
化学化工引用本文复制引用
翟甜,郝惠娣,高利博,雷建勇..鼓泡塔气液两相流内部流场的流体力学特性[J].化工进展,2013,(10):2319-2323,5.基金项目
陕西省科技厅研究发展计划（2011K10-21）、陕西省教育厅专项基金（11JK0619）及西北大学211工程创新人才培养（YZZ12040）项目。 （）
