| 矩形通道内脉动层流阻力特性实验研究 |
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| 引用本文： | 刘宇生,谭思超,高璞珍,张虹. 矩形通道内脉动层流阻力特性实验研究[J]. 原子能科学技术, 2013, 47(2): 223-228. DOI: 10.7538/yzk.2013.47.02.0223 |
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| 作者姓名： | 刘宇生 谭思超 高璞珍 张虹 |
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| 作者单位： | 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.环境保护部 核与辐射安全中心，北京100082；3.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 |
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| 基金项目： | 国家自然科学基金资助项目(50806014);中央高校基本科研业务费专项资金资助项目(HEUCFZ1008);核反应堆系统设计技术重点实验室基金资助项目(KZAKA1101) |
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| 摘 要： | 针对简谐脉动层流条件下矩形通道内的阻力特性进行理论和实验研究。基于脉动条件下矩形通道内层流流动的数学模型，分析了脉动周期、脉动振幅等因素对摩阻常数的影响，并进行实验验证。结果表明：脉动层流摩阻常数与脉动周期、脉动振幅、通道高宽比和流体性质有关；层流摩阻常数理论值与实验值相吻合，脉动周期越小或相对振幅越大，层流摩阻常数的峰值越大、谷值越小，层流摩阻常数脉动的幅度越大。
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| 关 键 词： | 脉动流 矩形通道 阻力特性 |
Experimental Study on Resistance Characteristics of Pulsating Laminar Flow in Rectangular Channel |
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| LIU Yu-sheng,TAN Si-chao,GAO Pu-zhen,ZHANG Hong. Experimental Study on Resistance Characteristics of Pulsating Laminar Flow in Rectangular Channel[J]. Atomic Energy Science and Technology, 2013, 47(2): 223-228. DOI: 10.7538/yzk.2013.47.02.0223 |
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| Authors: | LIU Yu-sheng TAN Si-chao GAO Pu-zhen ZHANG Hong |
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| Affiliation: | 1.National Key Discipline Laboratory of Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, China; 2.Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing 100082, China;3.Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610041, China |
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| Abstract: | Resistance characteristics of pulsating laminar flow in a rectangular channel were investigated analytically and experimentally. Mathematical model of laminar flow was established. The influences of the flow fluctuation period and relative amplitude on friction constant were analyzed. Analytical results were verified by experiment. The results show that friction constant in pulsating laminar flow is a function of pulsating period, relative amplitude, aspect ratio and fluid properties. The friction constants deduced by theoretical analysis are consistent with experiment results, and the pulsating amplitude of friction constant will become large as the pulsating period becomes short or the relative amplitude becomes large. |
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| Keywords: | pulsating flow rectangular channel resistance characteristics |
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