摇摆条件下单相水强制循环阻力特性实验研究  

Experimental Study on Forced Circulation Resistance Characteristics of Single-Phase Water Under Rolling Condition

作　　者：幸奠川[1] 阎昌琪[1] 曹夏昕[1] 刘洋[1,2] 高璞珍[1] 

机构地区：[1]哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨150001 [2]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《原子能科学技术》2011年第6期672-676,共5页Atomic Energy Science and Technology

基　　金：哈尔滨工程大学基础研究基金资助项目(HEUFT07066)

摘　　要：常温常压下,以去离子水为工质,对摇摆条件下当量直径为5.58 mm的有机玻璃矩形通道内流动阻力特性进行了实验研究。结果表明:摇摆条件下摩擦阻力系数随时间周期性波动,波动周期等于摇摆运动周期。雷诺数越小,摇摆运动的周期越小,最大摇摆角度越大时,实验段摩擦阻力系数波动幅值越大。通过π定理推导和大量实验数据的拟合,得到了计算摇摆条件下瞬态摩擦阻力系数的经验关系式。Experimental studies of single-phase flow characteristics in rolling plexiglass rectangular channel with the hydraulic diameter of 5.58 mm were carried out using de-ionized water as the working fluid under normal temperature and pressure.The results show that the friction coefficient in rolling condition fluctuates with time and the period is equal to that of rolling movement.The smaller the Reynolds number is,the smaller the rolling period is,and the greater the maximum rolling angle is,the greater the fluctuations in amplitude of the friction coefficient are.An empirical correlation for the transient friction coefficient under rolling conditions was obtained by applying π theorem and fitting a large number of experimental data.

关 键 词：摇摆运动 单相流动 强制循环 摩擦阻力系数 

分 类 号：TL334[核科学技术—核技术及应用]