摘要
１前言在核能、航天等技术领域和能源、动力、石油化工等工业过程都存在泡状流现象，其中绝大多数的泡状流流动状态为湍流，因此对湍流泡状流进行深入研究极为必要。近年来Ｌｅｅ［１］、Ｌｏｐｅｚ ｄｅ Ｂｅｒｔｏｄａｎｏ［２，３］等提出了一些多维的湍流输运的双流...
Based on the local instant phase conservation equations and their time averaging, atwo-fluid model to describe turbulent bubbly flow is developed with the use of k- model.The influence of bubbles on liquid phase flow structure and influence of wall on interfacialforce are considered in the model. In cylindrical coordinates and steady fully developed state,the model is simplified and the published experimental data of turbulent solid/liquid upflowin vertical pipe are used to test the model. The results show that this model can well predictvelocity and turbulent kinetic energy distributions of turbulellt bubbly flow.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1999年第6期750-753,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金
关键词
湍流泡状流
k-ε模型
液相速度
湍动能
turbulent bubbly flow, k-εmodel, liquid velocity distribution, turbulentkinetic energy distribution
