用空泡份额概率密度分布识别承压管道中两相流流型  

Identification Flow Pattern in Pressurized Tube by Making Use of Probability Density Distribution of Local Void Fraction

作　　者：张佑杰[1] 吴少融[1] 佟允宪[1] 姜胜耀[1] 韩兵[1] 

机构地区：[1]清华大学核能技术设计研究院,北京100084

出　　处：《核动力工程》1996年第3期240-244,共5页Nuclear Power Engineering

基　　金：国家自然科学基金

摘　　要：用局部空泡份额概率密度分布识别流到是一种不可视管道内两相流流型识别的方法，这种流型识别建立在流到分类的直观物理意义之上，并避免了流速的影响。本文给出了用差压传感器信号进行承压管道中局部空泡份额概率密度分布分析，进而识别汽水两相流流型的研究结果，测量仪器装置简单、可靠性高。实验研究是在核供热堆热工水力学实验系统HRTL-5上进行的，试验工作压力为1．5MPa，工作温度190℃。Probability density distribution analyzing of local void fraction is a kind of method for identifying flow pattern of two-phase flow in an invisible pipe.This method is directly based on the physical concept of flow pattern and avoids the affecting of speed of two phase flow.The experimental results of typical steam-water two-phase flow pattern identi fication in pressurized tube by making use of the probability density distribution analyzing of local volumetric void fraction are presented.The signal for analyzing is obtained from different pressure transmitter.The experimental device is simple and reliable.The experi ment was carried out on the thermohydraulic test system HRTL-5 for the nuclear heating reactor.The system pressure is 1.5MPa and the temperature is 190℃.

关 键 词：流型 流型识别 空泡份额 承压管道 供热堆 

分 类 号：TL334[核科学技术—核技术及应用]