摇摆对窄缝通道内高压两相摩擦阻力影响的研究  

Study on Effect of Rolling on Two-Phase Frictional Pressure Drop in Narrow Channels

作　　者：张震[1] 肖泽军[1] 闫晓[1] 秦胜杰[1] 黄彦平[1] 陈炳德[1] 

机构地区：[1]中国核动力研究设计院中核核反应堆热工水力技术重点实验室,成都610041

出　　处：《核动力工程》2014年第1期56-59,共4页Nuclear Power Engineering

基　　金：国家自然科学基金资助项目(51106142)

摘　　要：对矩形窄缝通道内高压两相摩擦阻力特性开展实验研究,分析摇摆运动对矩形窄缝内两相摩擦阻力的影响。结果表明:摇摆运动条件下,两相摩擦阻力会随着摇摆运动而呈现近似正弦的波动,两相摩擦阻力波动时均值与静止条件下的相等;摇摆运动引起的摩擦阻力相对变化量随着全液相雷诺数、含汽率、摇摆周期的增大而减小,随着摇摆幅值的增大而增大;摩擦阻力相对变化量与最大摇摆角加速度没有明显单调关系。提出用于计算摩擦阻力相对变化量的经验关系式。In the present paper, the effect of rolling motion on two-phase frictional pressure drop in rectangular channel was studied experimentally and theoretically. The result showed that, under rolling motion, the frictional pressure drop fluctuated similar to sine movement. And the frequency of the fluctuation was the same as the rolling frequency. Time averaged two-phase frictional pressure drop didn＇t vary with rolling motion. The relative fluctuant friction pressure drop decreased with Full Liquid Reynolds number and mass quality increasing, and increased with rolling amplitude and rolling frequency increasing. The result also showed that, the relative fluctuant friction pressure drop did not vary with maximal angular acceleration. An empirical correlation to predict the relative fluctuant friction pressure drop under rolling motion was got.

关 键 词：摇摆运动 矩形窄缝 两相流动 

分 类 号：TK124[动力工程及工程热物理—工程热物理]