摘要
一体化反应堆由于其固有优越的安全性和广泛用途，受到许多国家的重视。解决两相流脉动问题是发展一体化反应堆的关键技术之一。本文利用两相流动的变密度模型，建立了一体化反应堆蒸汽发生器并联管内高压汽水两相流密度波型脉动的控制方程，运用小扰动线性化方法及拉普拉斯变换和自动控制理论的稳定性判据，提出了系统发生密度波型脉动的预报模型。利用模型，计算了系统发生脉动的界限热流密度，并分析了有关参数对脉动界限的影响，结果与试验符合较好。
In many countries,integrated nuclear reactors(I.N.R.)are considered important for their inherent safety advantages and wide applications.Preventing the oscillations is one of the key techniques in developing I.N.R.By use of two-phase flow variable density model,in this paper are developed the governing equations of high pressure steam-water two-phase flow density wave oscillation in parallel pipes of I.N.R.steam generator.A predicting model for density wave oscillation is presented by use of the linearization method of small disturbances,Laplace transformation and stability criterion of automatic controlling theory.With this model,the threshold heat flux is calculated and also the effect of system parameters on it is analysed.The predicted results,which are shown to be in satisfactory agreement with experimental data,can be used for the design of practical I.N.R.steam generators.
出处
《核科学与工程》
CAS
CSCD
北大核心
1996年第4期289-296,共8页
Nuclear Science and Engineering
基金
国家自然科学基金
