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.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2003年第4期629-632,共4页
Journal of Engineering Thermophysics
关键词
并联管
两相流
不稳定性
均相模型
parallel tubes
two-phase flow
instability
homogeneous model
