摘要
采用双流体模型耦合界面浓度输运方程,对竖直上升管内泡状流进行了三维模拟。结合Wang(1987)的泡状流测量实验,研究了不同壁面润滑力作用下管道界面含气率的分布特征。通过实验测量结果与各种壁面润滑力模型计算结果的对比,分析了各种模型对含气率分布的影响。结果表明,Tomiyama及Frank的模型具有相似的特性,高估了壁面润滑力的大小。而Antal的模型作用范围过于狭小,对气泡分布的峰值的预测偏差很大。Hosokawa的模型则较好地预测了本文工况含气率的分布。
Three-dimensional numerical simulation was carried out on bubbly flow in a vertical pipe by the two-fluid model coupled with the interfacial area transport equation(IATE).According to the experiment of Wang(1987),the predicted cross-sectional void fraction distribution and the performance of different wall lubrication models were studied.Based on the experimental data,the effects of the wall lubrication models were analyzed.The results demonstrated that the characteristics of the Tomiyama model and the Frank model are similar and both of them overestimate the wall lubrication force.Moreover,the active range of the Antal model is too small,resulting in a large discrepancy on the peak value of the void fraction.The Hosokawa model produces better results on the void fraction profile for the cases studied in this paper.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2014年第10期1979-1983,共5页
Journal of Engineering Thermophysics
基金
中海油国家科技重大专项(No.2011ZX05026-004-02)
国家自然科学基金重点项目(No.51236007)
国家自然科学基金创新群体项目(No.51121092)
关键词
泡状流
壁面润滑力
双流体模型
界面浓度输运方程
bubbly flow
wall lubrication force
two-fluid model
interfacial area transport equation
