摘要
采用双组丝网传感器(WMS)测量双子通道稠密栅棒束流道内气-液两相流流动结构,研究了不同尺寸的气泡的形状特性。实验为常温常压下的空气-水两相流实验,液相表观流速范围为0.921~1.84 m/s,气相表观流速范围为0.0770~1.103 m/s,实验流型包含泡状流、泡-帽状流和弹状流。由于稠密栅窄缝尺寸较小,帽状气泡会被限制在单个子通道内,并且帽状气泡会在2个子通道内交替排列。随着气泡尺寸的增加,会形成穿过窄缝横跨2个子通道的弹状气泡。
The flow structures of gas-liquid two-phase flow and the shape of bubbles in a double sub-channels tight lattice bundle were measured using a dual wire-mesh sensor(WMS).The experiments were carried out under room temperature and pressure,using water as the liquid phase and air as the gas phase.The superficial velocity range is from 0.921 m/s to 1.84 m/s for the liquid phase and 0.0770 m/s to 1.103 m/s for the gas phase.The flow regime included bubbly flow,cap-bubbly flow,and slug flow.Due to the small size of the tight lattice bundle,the cap bubbles were confined in a single sub-channel.The cap bubbles were arranged alternately in the two sub-channels.With the increasing of the bubble size,slug bubbles that can cross the gap and span the whole channel cross-section can be observed.
作者
张亨伟
肖瑶
顾汉洋
Zhang Hengwei;Xiao Yao;Gu Hanyang(School of Nuclear Science and Engineering,Shanghai Jiaotong University,Shanghai,200240,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2021年第S01期77-82,共6页
Nuclear Power Engineering
基金
国家自然科学基金(51806141、12075150)。
