摘要
针对某一自然循环实验,利用RELAP5程序对其建模,并进行数值分析,得出了该系统的流动不稳定性边界。对不同压力和不同上升段结构尺寸下的流动不稳定性边界及流量振动曲线进行了比较,分析了原因。最后,讨论了欠热沸腾对自然循环流动不稳定性的影响。研究结果可为自然循环系统的工程设计提供一定的借鉴。
The flow instability in natural circulation system with single channel was performed by the best estimate system computer code RELAP5.The instability boundaries of different pressures were obtained.The influences of system pressure and the riser section on the flow instability were analyzed.And the characteristics of oscillation curves were studied.The results confirm that the subcooling boiling is very important for the natural circulation instability.The investigation results have the values for the design of some natural circulation system.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2010年第8期958-963,共6页
Atomic Energy Science and Technology
