矩形通道内两相脉动流平均摩擦压降实验研究  

Experimental Study on Average Frictional Pressure Drop of Gas-liquid Two-phase Pulsatile Flow

作　　者：周豹 高璞珍 谭思超 田竞达 张虹[2] 

机构地区：[1]哈尔滨工程大学核安全与仿真技术国防重点学科实验室,黑龙江哈尔滨150001 [2]中国核动力研究设计院核反应堆系统设计技术重点实验室,四川成都610041

出　　处：《原子能科学技术》2013年第11期1989-1992,共4页Atomic Energy Science and Technology

基　　金：核反应堆系统设计技术重点实验室基金资助项目;中央高校基本科研业务费专项资金资助项目(HEUCFZ1008);高等学校博士学科点专项科研基金资助项目(20122304110023)

摘　　要：通过对截面为40mm×3mm窄矩形通道内不同正弦脉动周期、振幅、平均流量工况下氮气-水两相流(平均分液相雷诺数Rel<10 000,平均分气相雷诺数Reg<800)进行实验研究,发现两相脉动流与单相水脉动流的规律不同,平均压差对脉动周期、振幅不敏感。应用各经验公式计算的脉动工况下平均摩擦压降的偏差与稳态工况的计算偏差在数值和分布上均无明显差异,且计算值分布在测量值两侧、相对偏差基本小于20%。其中,Mishima-Hibiki方法和Lee-Lee方法的计算结果与测量结果吻合良好,相对偏差在10%以内,说明两相流摩擦压降经验公式同样适用于脉动工况下平均摩擦压降的计算。The gas-liquid two-phase pulsatile flow was studied in a rectangular channel with 40 mm）〈3 mm cross section under different periods, flow rate amplitudes and its mean values （mean Rel〈10 000, mean Re〈800）. There was difference between the single phase pulsatile flow and the gas-liquid two-phase pulsatile flow, and pulsation period and amplitude were not sensitive for the average frictional pressure drop. There was no significant difference on the values and distribution between the calculation deviations in pulsatile flow and the calculation deviations in steady flow by using different empirical formulas. Almost all of the relative deviations were less than 20%, and the relative deviations of Mishima-Hibiki method and Lee-Lee method were less than 10%. The results show that the empirical formulas for the two-phase steady flowfrictional pressure drop are also suitable for the calculation of the average value of two- phase pulsatile flow.

关 键 词：矩形通道 气液两相流 脉动流 摩擦压降 

分 类 号：TL334[核科学技术—核技术及应用]