| 基于CFD方法的行波堆19燃料棒束流固耦合传热特性研究 |
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| 引用本文： | 卢川,严明宇,毕树茂,宋英明.基于CFD方法的行波堆19燃料棒束流固耦合传热特性研究[J].原子能科学技术,2015,49(12):2170-2175. |
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| 作者姓名： | 卢川 严明宇 毕树茂 宋英明 |
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| 作者单位： | 1.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610213；2.南华大学 核科学技术学院，湖南 衡阳421001 |
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| 摘 要： | 采用流固耦合传热方法对行波堆19燃料棒束流动及传热特性进行了研究。研究结果表明:出口区域燃料棒呈现出非对称和偏心温度分布特性;下游区域流体截面温度分布差别较大;包壳表面热流密度分布差别明显,螺旋绕肋结构具有局部强化换热的能力;出口区域发现了局部倒传热现象。该组件结构有待将来进一步借助流固耦合传热分析方法进行优化改进。
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| 关 键 词： | 行波堆 燃料棒束 流固耦合传热 CFD |
Study on Fluid-solid Coupling Heat Transfer Characteristics of TWR Assembly with 19 Fuel Pins Based on CFD Method |
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| LU Chuan,YAN Ming-yu,BI Shu-mao,SONG Ying-ming.Study on Fluid-solid Coupling Heat Transfer Characteristics of TWR Assembly with 19 Fuel Pins Based on CFD Method[J].Atomic Energy Science and Technology,2015,49(12):2170-2175. |
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| Authors: | LU Chuan YAN Ming-yu BI Shu-mao SONG Ying-ming |
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| Affiliation: | 1.Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China; 2.School of Nuclear Science and Technology, University of South China, Hengyang 421001, China |
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| Abstract: | Characteristics of flow and heat transfer of TWR assembly with 19 fuel pins were studied by fluid-solid coupling heat transfer method. The results show that there is obviously asymmetrical and eccentric temperature distribution characteristic in outlet area. The temperature difference of coolant is quite obvious in downstream cross section. Huge heat flux difference appears on the cladding surface. The helix wrapped wire shows the ability of heat transfer enhancing. The inverse heat transfer phenomena are caught in outlet area. The structures of bundles need to be improved by fluid-solid coupling heat transfer calculation in the future. |
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| Keywords: | TWR fuel pin fluid-solid coupling heat transfer CFD |
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