【摘要】 本文叙述了低压低流速下用快响应的γ射线密度计沿着环形试验流道轴向测量汽-液两相流空泡份额的试验研究。由实验结果得到了泡状流、团状流的空泡份额关系式以及汽泡脱离壁面的过热度关系式。实验的参数范围是:p=0.16—0.19MPa、试验段入口冷却剂温度和流速,T_λ=27—73.5℃,V₀=0.05—0.5m/s、热流密度q=0.1—0.86MW/m²。实验数据系用计算机采集、贮存和处理,并对典型的流动状态录了相。更多还原

【Abstract】 This paper describes an experimental study of the void fraction ofsteam-water two phase flow along the annular channel axial locationmeasured by a quick response γ-ray densitometer under low pressure andlow velocity.The correlation of void fraction of bubbly flow and slugflow and correlation of degree of superheat after babbles departure fromwall surface are given.The experimental conditions are as follows:press-ures p=0.16-0.19 MPa,test section inlet cooling temperatures T_λ=27-73.5℃,velocity of flow v_o=0.05-0.5m/s,the heat fluxes q=0.1-0.86MW/m~2.The data acquisition and data processing are completed by amicrocomputer YEE8100.The typical flow state is type recorded by vid-eo-recorder.更多还原