化学工程2012，Vol.40Issue(9)：48-51,4.DOI:10.3969/j.issn.1005-9954.2012.09.011
鼓泡塔内气泡羽流周期性摆动的数值模拟
Numerical simulation of bubble plume periodic oscillation in bubble column
徐礼嘉 1陈彩霞 1夏梓洪 1袁伯若1
作者信息
- 1. 华东理工大学煤气化及能源化工教育部重点实验室,上海200237
- 折叠
摘要
Abstract
The dynamic characteristic of gas-liquid phases in 2D and 3D bubble columns was taken as a studying object, expecting to find suitable turbulence model and boundary conditions for 2D and 3D simulation. For 2D computation, the inlet velocity conditions were evaluated, i. e. : ① the actual inlet velocity of 3D bubble column; ② an averaged inlet velocity with diffusion correction. Standard k-e turbulence model and RNG k-ε turbulence model were used. The numerical results show that 2D simulation using RNG k-e turbulence model and 3D simulation using standard k-e turbulence model can mimic the periodic plume oscillations in bubble columns. The results also confirm that the oscillations period can be predicted only when the corrected inlet velocity is employed for 2D simulation.
关键词
鼓泡塔/数值模拟/双流体模型/湍流模型Key words
bubble column/ numerical simulation/ two-fluid model/ turbulence model分类
化学化工引用本文复制引用
徐礼嘉,陈彩霞,夏梓洪,袁伯若..鼓泡塔内气泡羽流周期性摆动的数值模拟[J].化学工程,2012,40(9):48-51,4.
