| 直埋管道的热力分析 |
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| 引用本文： | 樊洪明,江亿,何钟怡.直埋管道的热力分析[J].清华大学学报(自然科学版),2002,42(6):806-809. |
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| 作者姓名： | 樊洪明 江亿 何钟怡 |
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| 作者单位： | 1. 清华大学建筑技术科学系,北京,100084
2. 哈尔滨工业大学建筑热能工程系,哈尔滨,150001 |
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| 摘 要： | 为了对直埋管道保温层及其土壤邻域的温度场进行较精确的分析 ,采用保形映射、分离变量和边界离散法对地下直埋管道的温度场进行分析 ,得到了级数形式的解。其中确定级数项系数的边界离散法适于解决某些可分离变量的非正交问题。对工程实例的计算表明 ,在直埋管道保温层及其周围土壤邻域的温度场计算方面 ,使用边界离散法得到的结果更加精确可靠
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| 关 键 词： | 边界离散法 非正交边界 直埋敷设 温度场 |
| 文章编号： | 1000-0054(2002)06-0806-04 |
| 修稿时间： | 2000年10月26 |
Thermal analysis of a straight buried pipe |
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| FAN Hongming ,JIANG Yi ,HE Zhongyi.Thermal analysis of a straight buried pipe[J].Journal of Tsinghua University(Science and Technology),2002,42(6):806-809. |
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| Authors: | FAN Hongming JIANG Yi HE Zhongyi |
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| Institution: | FAN Hongming 1,JIANG Yi 1,HE Zhongyi 2 |
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| Abstract: | The temperature field around a straight buried pipe was analyzed using conformal mapping, separation of variables and boundary discretization. A series solution was obtained for the temperature field. The boundary discretization method was used to determine the series coefficients based on the discretization of the boundary conditions at the nonorthogonality boundaries. An engineering example was presented to illustrate the result. This method can be applied to other types of nonorthogonal problems with separation of variables. |
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| Keywords: | boundary discretization method nonorthogonal boundary straight buried installoation temperature field |
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