并联管内两相流密度波脉动线性均相模型  

THE LINEAR HOMOGENEOUS FLOW MODEL FOR DENSITY WAVE OSCILLATION OF TWO-PHASE FLOW IN PARALLEL TUBES

作　　者：周云龙[1] 孙斌[1] 李岩[1] 洪文鹏[1] 

机构地区：[1]东北电力学院,吉林吉林132012

出　　处：《工程热物理学报》2003年第4期629-632,共4页Journal of Engineering Thermophysics

摘　　要：两相流不稳定性理论分析方法可以分为两大类:一类是数值解析法,另一类是近似分析法。数值分析法已经有很多学者进行了大量研究,而近似分析法研究相对少一些。本文提出了描述并联沸腾管内两相流密度波型脉动的线性均相模型。根据线性均相模型运用系统控制原理的方法导出了描述系统稳定性的无因次参数ε。运用参数ε判断系统的稳定性,计算值和实验值基本吻合。Theoretical approach of two-phase flow instability can be divided into two categories: numerical analysis and approximation analysis. Numerical analysis has been widely used by many researchers, but approximation analysis used by few researchers. This paper presents a linear homogeneous model describing two-phase flow instability. Dimensionless parameter e was derived by using the linear homogenous model. Using parameter e the stability of a system could be easily judged. The calculated results agree with the experimental data well.

关 键 词：并联管 两相流 不稳定性 均相模型 

分 类 号：O359.1[理学—流体力学]