| 用变分法求解矩形等截面螺旋肋片效率 |
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| 引用本文： | 喻央央,卓宁,马其良.用变分法求解矩形等截面螺旋肋片效率[J].上海理工大学学报,1989(2). |
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| 作者姓名： | 喻央央 卓宁 马其良 |
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| 作者单位： | 上海机械学院动力工程学院
(喻央央，卓宁)，上海机械学院动力工程学院(马其良) |
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| 摘 要： | 用变分法求解定解形式不便用初等函数表达的导热微分方程简单易行。本文应用变分法求解矩形等截面螺旋肋片传热方程,得到了能满足一般工程应用要求的计算矩形等截面螺旋肋片效率的渐近表达式。
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| 关 键 词： | 鳍片管 热传导 变分法 过余温度 |
Using the Variational Method to Solve the Efficiency of Equivalent Cross-section Spiral Fin |
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| Yu Yangyang Zhuo Ning Ma Qiliang.Using the Variational Method to Solve the Efficiency of Equivalent Cross-section Spiral Fin[J].Journal of University of Shanghai For Science and Technology,1989(2). |
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| Authors: | Yu Yangyang Zhuo Ning Ma Qiliang |
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| Institution: | Yu Yangyang Zhuo Ning Ma Qiliang |
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| Abstract: | Up to now the efficiency of spiral fins is much the same as that of the annular fin. In the present article, through the analysis of the differential equation of heat transfer for the equivalent cross-section spiral fin, the authors Successfully use the variational method to obtain the fin efficiency and the asymptotic solution of temperature distribution along the fin. |
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| Keywords: | Finned tube Heat conduction Variational method Excess temperature |
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