| 矩形直肋二维稳态导热的数值解及其分析 |
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| 引用本文： | 王建强,冯廷龙,王文红,贾玉青.矩形直肋二维稳态导热的数值解及其分析[J].五邑大学学报(自然科学版),2008,22(1):53-57. |
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| 作者姓名： | 王建强 冯廷龙 王文红 贾玉青 |
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| 作者单位： | 1. 河北工程大学城建学院,河北,邯郸,056038
2. 山东建筑大学,热能工程学院,山东,济南,250101 |
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| 摘 要： | 建立了矩形直肋二维稳态导热的数学模型，使用有限差分法对建立的数学模型进行了数值求解，绘制了不同条件下肋片的温度场分布，找出了影响肋片散热的因素；从肋效率出发比较了一维模型和二维模型之间的差别，提出了可以将二维模型简化为一维模型的判据．
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| 关 键 词： | 矩形直肋 导热 有限差分法 肋效率 |
| 文章编号： | 1006-7302（2008）01-0053-05 |
| 收稿时间： | 2007-10-12 |
| 修稿时间： | 2007年10月12 |
An Analysis and Numerical Calculation of the Two-dimensional Steady-state Heat Conduction in Rectangular Fins |
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| WANG Jian-qiang,FENG Ting-long,WANG Wen-hong,JIA Yu-qing.An Analysis and Numerical Calculation of the Two-dimensional Steady-state Heat Conduction in Rectangular Fins[J].Journal of Wuyi University(Natural Science Edition),2008,22(1):53-57. |
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| Authors: | WANG Jian-qiang FENG Ting-long WANG Wen-hong JIA Yu-qing |
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| Institution: | WANG Jian-qian, FENG Ting-long, WANG Wen-hong, JIA Yu-qing (1. Hebei University of Engineering, Handan 056038, China; 2. Shandong Construction University, Jinan 250101, China) |
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| Abstract: | This paper established the mathematic model for the two-dimensional steady-state heat conduction in rectangular fins, solved the mathematic model by using the finite difference method （FDM）, drew the degree distribution under different circumstances, and found the factor influencing heat loss. Starting from the fin efficiency, the paper compared the one-dimensional model and two-dimensional model and put forward the criterion for predigesting two-dimensional models to one-dimensional models. |
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| Keywords: | rectangle fins conduction FDM fin efficiency |
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