| 路面温度场的数值解及几个关键问题探讨 |
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| 引用本文： | 谈至明,邹晓翎,刘伯莹.路面温度场的数值解及几个关键问题探讨[J].同济大学学报(自然科学版),2010,38(3):374-379. |
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| 作者姓名： | 谈至明 邹晓翎 刘伯莹 |
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| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海,201804
2. 中交桥梁技术有限公司,北京,100029 |
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| 基金项目： | 交通部西部交通建设科技资助项目 |
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| 摘 要： | 利用有限差分法,研究了不同边界条件下路面温度场有限差分解的收敛性及网格的合理划分;分析了将路面结构温度场求解简化为半无限体热传导问题的可行性及误差、路表与天空相互辐射中路表温度和天空有效温度作一阶泰勒近似所引起的偏差;讨论了天空有效温度的估计偏差对路面温度场的影响,以及路面初始温度值偏差的消散时间.
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| 关 键 词： | 道路工程 路面温度场 有限差分法 半无限体 热传导 天空有效温度 误差分析 |
| 收稿时间： | 2008/11/26 0:00:00 |
| 修稿时间： | 1/5/2010 1:28:34 PM |
Numerical Solution to Pavement Temperature Fields and Discussion on Several Key Issues |
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| TAN Zhiming,ZOU Xiaoling and LIU Boying.Numerical Solution to Pavement Temperature Fields and Discussion on Several Key Issues[J].Journal of Tongji University(Natural Science),2010,38(3):374-379. |
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| Authors: | TAN Zhiming ZOU Xiaoling and LIU Boying |
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| Institution: | TAN Zhiming1,ZOU Xiaoling1,LIU Boying2 (1.Key Laboratory of Road , Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,2.Zhongjiao Bridge Technology Co.,Ltd.,Beijing 100029,China) |
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| Abstract: | Based on the finite difference method,a study was made of the convergences and meshing technique for pavement temperature field in different boundary conditions.Also an analysis was made of the feasibility and calculating error for pavement temperature field in a multi-layered system being simplified to a homogeneous semi-infinite body,the error between the first order Taylor approximation of pavement surface temperature,sky effective temperature due to mutual radicalization in pavement surface and sky and ... |
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| Keywords: | road engineering pavement temperature field finite difference method (FDM) semi-infinite object heat conduct effective sky temperature error analysis |
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