摘要
并联通道的不稳定性是两相流学科中的重要研究方向。本文针对强迫循环并联环隙窄缝通道系统,使用RELAP5/MOD3.4程序进行分析,研究了平行通道系统的流动不稳定特性。指出在加热通道的水力直径较小时,平行通道系统中存在管间脉动和管间流量漂移两种不稳定现象。根据水动力特性曲线的特性,分析了这两种不稳定现象的形成及发展过程,得出主要运行参数对平行通道管间流量漂移不稳定性的影响规律。
Two-phase flow instability has been researched in the past decades.The forced circulation vertical parallel narrow channel system under different flow conditions was performed by the best estimate system computer code RELAP5/MOD3.4.The instability of parallel channel system was studied.The results show that two-phase flow instability between multi-channels（FIBM） and flow excursion instability are two typical types of instability in parallel narrow channels.The process and inherent reason of flow excursion and FIBM in forced circulation parallel channel system were analyzed.The effects of main operating parameters on flow excursion instability were studied.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2012年第10期1193-1196,共4页
Atomic Energy Science and Technology
