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| 考虑淤沙影响的高拱坝水库水温数值分析 | |
| 引用本文： | 刘杏红,韩云童,常晓林,周 伟.考虑淤沙影响的高拱坝水库水温数值分析[J].水利学报,2010,41(3). |
| 作者姓名： | 刘杏红 韩云童 常晓林 周 伟 |
| 作者单位： | 1. 武汉大学,土木建筑工程学院,湖北,武汉,430072 2. 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072;中南电力设计院,湖北,武汉,430071 3. 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
| 摘 要： | 本文考虑高拱坝水库淤沙的影响,采用热流耦合方法对水库立面二维水温数学模型进行数值分析,探讨高拱坝水库水温的分布规律。在此基础之上,分析了水库水温分层的形成过程及原因,并重点探讨了淤沙对高拱坝水库水温以及运行期应力的影响,对比分析了水温的规范算法、实测值和本文数值计算方法之间的差别,并对规范的水库水温计算方法进行了评价。二滩水库的数值计算结果表明,在1 060m高程以下,考虑淤沙的影响更接近实测的水温结果,而按照规范方法计算的水库水温边界条件,具有较大的安全裕度。 |
| 关 键 词： | 高拱坝 水库水温 封拱温度 数值分析 |
Numerical analysis on water temperature in reservoir for high arch dam considering the effects of sedimentation |
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| LIU Xing-hong,HAN Yun-tong,CHANG Xiao-lin and ZHOU Wei.Numerical analysis on water temperature in reservoir for high arch dam considering the effects of sedimentation[J].Journal of Hydraulic Engineering,2010,41(3). | |
| Authors: | LIU Xing-hong HAN Yun-tong CHANG Xiao-lin and ZHOU Wei |
| Affiliation: | LIU Xing-hong1,HAN Yun-tong2,CHANG Xiao-lin1,ZHOU Wei1(1.Wuhan University,Wuhan 430072,China,3.Central Southern China Electric Power Design Institute,Wuhan 430071) |
| Abstract: | A 2-D flow-thermal coupling numerical model is established to study the effect of sedimentation on water temperature distribution in reservoir of high dam.The temperature distribution law,the formation and development of temperature layers are analyzed.The influence on the stress field of the high arch dam caused by the sedimentation during reservoir operation period is discussed.The differences of the results among the methods of design criterion,the actual measurement and the numerical calculation of the ... |
| Keywords: | high arch dam reservoir water temperature closing arch temperature numeric |
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