窄缝内汽液两相临界流实验研究  

EXPERIMENT ON TWO-PHASE CRITICAL FLOW THROUGH NARROW CHANNELS

作　　者：赵建福[1] 张征明[2] 张忠海[2] 

机构地区：[1]中国科学院力学研究所国家微重力实验室,北京100080 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《工程热物理学报》2007年第z1期173-176,共4页Journal of Engineering Thermophysics

基　　金：中国科学院知识创新工程项目(No.KJCX2-SW-L05);国家自然科学基金(No.10432060)

摘　　要：本文实验研究了高过冷水在窄缝内形成的汽液两相临界流动现象,考察了水的泄漏率与容器内压、温度、流道几何尺寸等影响因素之间的关系,给出了一个简单的拟单相流预测关系式,和实验数据的比较表明,该关系式可以较好地预测高过冷水在窄缝内形成的气液两相临界流动现象。In the present paper,the phenomenon of two-phase vapor-liquid critical flow of high sub- cooled water through narrow channels is studied experimentally.The flow rate of water are measured under different conditions of the vessel pressure,the inlet temperature and the geometrical parameters of narrow channels.A pseudo-single phase correlation has been proposed to predict the flow rate in this phenomenon.Comparing with the experimental data,the agreement is satisfactory.

关 键 词：临界流动 汽液两相流 窄缝 过冷度 

分 类 号：TK124[动力工程及工程热物理—工程热物理]