摘要
对摇摆状态下的强迫循环沸腾流动特性进行实验研究。研究结果表明,当出口含气率达到一定值后,由于摇摆状态下的实验系统空间位置发生变化导致回路局部出现周期性的汽泡雍塞,诱发两相质量流速出现类似流动不稳定性的波动。流动的稳定边界主要受质量流速、入口压力、入口过冷度、摇摆角度及摇摆周期的影响。随着质量流速增大,摇摆参数的影响逐渐减小;系统压力、入口过冷度及质量流速越大,系统越稳定。
The boiling flow characteristics under rolling motion condition is experimentally studied. The results show that the variation of spatial location under rolling motion condition leads to he clogging of bubble and induces the mass flow rate fluctuate periodical. The marginal stability boundary （MSB） is affected by the flow flux, rolling amplitude, rolling period, inlet subcooling and inlet pressure. The effect of rolling amplitude and rolling period on the MSB decreases with the increasing of flow flux. In addition, increasing the mass flow rate, inlet subcooling or inlet pressure tends to stabilize the boiling system.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2013年第2期51-55,共5页
Nuclear Power Engineering
基金
中央高校基本科研业务费专项资金(HEUCFZ1008)
关键词
摇摆运动
沸腾流动
强迫循环
流量波动
Rolling motion, Boiling flow, Forced circulation, Flow fluctuation
