| 矩形通道内脉动层流流场特性理论研究 |
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| 引用本文： | 刘宇生,谭思超,高璞珍,袁其斌. 矩形通道内脉动层流流场特性理论研究[J]. 原子能科学技术, 2012, 46(11): 1318-1323. DOI: 10.7538/yzk.2012.46.11.1318 |
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| 作者姓名： | 刘宇生 谭思超 高璞珍 袁其斌 |
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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.广东大亚湾核电运营管理有限责任公司 生产准备中心，广东 深圳518124 |
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| 基金项目： | 国家自然科学基金资助项目，中央高校基本科研业务费专项资金资助项目 |
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| 摘 要： | 本文对流量脉动条件下矩形通道内的层流流场分布特性进行了理论研究。分析了脉动周期、脉动振幅和通道结构尺寸3个因素对流场分布的影响。分析结果表明，矩形通道内脉动速度分布取决于流场中各点稳定速度分量和往复速度分量的叠加，由于往复速度的存在，使得脉动速度的分布与稳定流动存在较大不同，并对近壁区的速度梯度产生了影响。
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| 关 键 词： | 脉动流 矩形通道 流场 |
Analytical Study of Pulsating Laminar Flow Field in Rectangular Channel |
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| LIU Yu-sheng , TAN Si-chao , GAO Pu-zhen , YUAN Qi-bin. Analytical Study of Pulsating Laminar Flow Field in Rectangular Channel[J]. Atomic Energy Science and Technology, 2012, 46(11): 1318-1323. DOI: 10.7538/yzk.2012.46.11.1318 |
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| Authors: | LIU Yu-sheng TAN Si-chao GAO Pu-zhen YUAN Qi-bin |
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| Affiliation: | 1.National Defense Key Subject Laboratory for 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.Production Preparation Center, Daya Bay Nuclear Power Operations and Management Co., Ltd., Shenzhen 518124, China |
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| Abstract: | Pulsating laminar flow field in rectangular channel was investigated analytically. The influences of the flow fluctuation period, relative amplitude and aspect ratio on the flow field in rectangular channel were analyzed. The results show that velocity is composed of the steady component and the oscillating component at every point in rectangular channel. Compared with steady flow filed, the flow filed changes a lot under pulsating condition due to the oscillating velocity component, which leads to some change of velocity gradient in the near wall region. |
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| Keywords: | pulsating flow rectangular channel flow field |
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