摇摆条件下矩形窄缝通道内汽泡脱离直径实验研究  

Experimental Research on Bubble Departure Diameter in Narrow Rectangular Channel Under Rolling Motion

作　　者：谢添舟[1] 陈炳德[1] 闫晓[1] 徐建军[1] 黄彦平[1] 肖泽军[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,四川成都610041

出　　处：《原子能科学技术》2014年第4期637-641,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(51106142)

摘　　要：以去离子水为工质,可视化研究了矩形窄缝通道内不同质量流速下摇摆运动对汽泡脱离直径的影响。研究结果表明,由于摇摆运动引起的局部流场波动,汽泡生长过程变得不稳定,且汽泡脱离直径在一定范围内波动,这种效应会随质量流速的增大而减弱。线性拟合发现,摇摆角位移为0°时,汽泡脱离直径有最小的趋势。The effect of rolling motion on bubble departure diameter at different mass flow rates was investigated in a narrow rectangular channel using deionized water as the working fluids.The results show that,because of the local flow field fluctuation caused by rolling motion,bubble growth process becomes unstable and bubble departure diameter fluctuates within a certain range.This effect will be weakened with the increase of mass flow rate.By linear fitting,it is indicated that the bubble departure diameter has a trend to be the smallest when the angular displacement of rolling motion is zero.

关 键 词：摇摆运动 矩形窄缝通道 汽泡脱离直径 

分 类 号：TK124[动力工程及工程热物理—工程热物理]