摘要
针对反应堆压力容器外部冷却(ERVC)缩比试验台架的可视化视频数据,基于Matlab商业软件开发相应图像自动分辨和界面捕捉程序IMGPROCS1对下朝向半球形结构的沸腾两相流动可视化数据进行批量处理分析。通过图像分析程序的批量处理,分析了不同工况下ERVC过程中沸腾汽泡的界面演化、汽膜厚度、沸腾循环周期等汽泡行为特征。结果表明:核态沸腾工况下,随着热流密度的增加,汽膜厚度逐渐增大;沸腾循环周期维持一恒定值。
Based on the visualized data obtained by the scale-down test facility under external reactor vessel cooling, the image automatic resolution and interface capture program IMGPROCS1 was developed to analyze the observation of downward facing pool boiling phenomena under the hemispherical structure using the commercial software Matlab. Through this image processing program, two phase flow characteristics and morphology along the overheated surface such as interface evolution, vapor film thickness and boiling cycle were quantitatively acquired under different working conditions. The results showed that under nucleate boiling condition, the vapor thickness increased gradually with the increasing of heat flux. The boiling cycle was maintained constant.
作者
薛艳芳
张祥
田道贵
Xue Yanfang;Zhang Xiang;Tian Daogui(State Nuclear Power Technology Research and Development Center,Beijing,102209,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2019年第4期21-24,共4页
Nuclear Power Engineering
基金
国家科技重大专项项目大型先进压水堆及高温气冷堆核电站(No.2015ZX06002007-003-002)
