摘要
定义了无量纲分析的参考尺度 ,采用无量纲分析的方法 ,运用一维均相模型 ,从理论上研究了两相自然循环系统的静态不稳定特性 ,总结出了影响两相自然循环系统静态稳定性的几个重要的无量纲参数。运用分岔理论及其DERPAR数值算法 ,得到了由无量纲量Npch m+表示的沸腾两相自然循环系统的静态分岔图 ,详细分析了由浮力和阻力随无量纲的加热功率的非线性的变化特性。并且给出了几个重要系统参数的效应图。
Characteristic values are defined which are used to non dimensionalize the equations. Based on the method of non dimensional analysis, static instability of two phase natural circulation is theoritically studied by using homogeneous model. Several key non dimensional parameters are defined. Meanwhile static bifurcation diagram described by N pch m + is achieved through the bifurcation theory and DERPAR method. The parametric effects such as subcooling number, local loss, diameter and length ratio between heat and rise section, on bifurcation diagrams are studied as well.
出处
《核科学与工程》
CSCD
北大核心
2001年第4期311-316,321,共7页
Nuclear Science and Engineering
关键词
沸腾
两相自然循环
静态分岔
流动稳定性
无量纲参数
反应堆
回路系统
two phase natural circulation
static bifurcation
flow stability
non dimensional parameter
characteristic values
