两相自然循环密度波不稳定性的实验研究  

AN EXPERIMENTAL INVESTIGATION OF DENSITY WAVE OSCILLATION IN TWO PHASE NATURAL CIRCULATION SYSTEM

作　　者：苏光辉[1] 张金玲[1] 郭玉君[1] 秋穗正[1] 贾斗南[1] 喻真烷[1] 郭予飞[1] 

机构地区：[1]西安交通大学

出　　处：《核科学与工程》1998年第1期14-19,共6页Nuclear Science and Engineering

摘　　要：在自然循环水回路上进行了两相流密度波不稳定性的实验研究，得到了不同工况下的实时脉动曲线。分析了系统压力、质量流密度、进口欠热度对系统稳定边界的影响。得出了用无量纲量相变数Ｎｐｃｈ、欠热度数Ｎｓｕｂ、弗劳德数Ｆｒ表示的系统稳定边界图及稳定性判别准则式。This paper describes the experimental study of two phase density wave oscillation in natural circulation loop. The oscillation curves under different conditions are obtained. In the experiment, the effects of various system parameters such as system pressure, inlet subcooling, and mass flow rate etc. on flow instability are examined; and the marginal stability boundary of the system is determined by non dimensional parameters: the subcooling number N sub and the phase change number N pch .And a stability criterion including the Froude number is developed also.

关 键 词：两相流 自然循环 密度波不稳定性 反应堆 

分 类 号：TL334[核科学技术—核技术及应用]