| 三峡工程运用初期石首河弯河势演变三维数值模拟 |
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| 引用本文： | 假冬冬,邵学军,王虹,肖毅,周刚.三峡工程运用初期石首河弯河势演变三维数值模拟[J].水科学进展,2010,21(1):43-49. |
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| 作者姓名： | 假冬冬 邵学军 王虹 肖毅 周刚 |
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| 作者单位： | 清华大学水沙科学与水利水电工程国家重点实验室, 北京, 100084 |
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| 基金项目： | 国家自然科学基金资助项目，"十一五"国家科技支撑计划资助项目 |
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| 摘 要： | 采用考虑河岸坍塌的三维水沙数值模型,对三峡工程运用初期石首河弯的河势演变进行了模拟分析.数值模型中采用基于非正交网格的局部网格可动技术,将传统水沙模型与二元结构河岸坍塌力学模型相结合.利用三峡水库蓄水前后2002~2004年石首河段冲淤演变资料对模型进行了验证,模拟结果与实测结果吻合较好;模型不仅能模拟出河道的垂向冲淤过程,而且还可模拟出由河岸坍塌所引起的河道横向摆动过程.计算分析了三峡工程运行至2016年末河段的河势演变情况,结果可为河段的河道整治提供参考.
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| 关 键 词： | 三峡工程 石首河弯 河势演变 河岸坍塌 三维 水沙数值模拟 |
| 收稿时间： | 2009-02-23 |
3D numerical simulation of fluvial processes in the Shishou bend during the early filling of the Three Gorges Reservoir |
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| JIA Dong-dong,SHAO Xue-jun,WANG Hong,XIAO Yi,ZHOU Gang.3D numerical simulation of fluvial processes in the Shishou bend during the early filling of the Three Gorges Reservoir[J].Advances in Water Science,2010,21(1):43-49. |
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| Authors: | JIA Dong-dong SHAO Xue-jun WANG Hong XIAO Yi ZHOU Gang |
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| Institution: | State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084 |
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| Abstract: | A 3D mathematical modeling considering bank erosion is adopted to simulate the fluvial processes of the Shishou bend in the Middle Yangtze River during the early filling of the Three Gorges Reservoir.The locally-adaptive grid system based on non-orthogonal grids is used to calculate the lateral migration in channels due to bank erosion with a composite structure.The observed data of bed deformation from September 2002 to July 2004 is adopted to verify the accuracy of the model,and the calculated results agr... |
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| Keywords: | Three Gorges Project Shishou bend fluvial processes bank erosion three-dimensional mathematical modeling |
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