| 山区河流平面二维流场的数值模拟 |
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| 引用本文： | 李艳红,周华君,时钟.山区河流平面二维流场的数值模拟[J].水科学进展,2003,14(4):424-429. |
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| 作者姓名： | 李艳红 周华君 时钟 |
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| 作者单位： | 1.上海交通大学船海院港口与水利工程研究所, 上海, 200030; |
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| 基金项目： | 国家杰出青年基金资助项目(40225014)~~ |
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| 摘 要： | 针对山区河流边界地形复杂、水位及流速变化剧烈的特点,用"混合五对角法"建立平面二维数学模型并求解,进行水位和流速的数值模拟.利用嘉陵江重庆金刚碑-朝阳桥河段地形及5个横断面的水位和水深平均流速资料对此模型进行了验证,模型快速、准确地再现了该河段的水位和水深平均流速情况.
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| 关 键 词： | 山区河流 平面二维流场 混合五对角法 数学模型 |
| 文章编号： | 1001-6791(2003)04-424-06 |
| 收稿时间： | 2002-05-13 |
| 修稿时间： | 2002年5月13日 |
2-D horizontal numerical modeling of flow in the mountain river |
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| LI Yan-hong,ZHOU Hua-jun,SHI Zhong.2-D horizontal numerical modeling of flow in the mountain river[J].Advances in Water Science,2003,14(4):424-429. |
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| Authors: | LI Yan-hong ZHOU Hua-jun SHI Zhong |
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| Institution: | 1.Institute of Harbour and Hydraulic Engineering, Shanghai Jiaotong University, Shanghai 200030, China;2.Department of River, Coastal and Civil Engineering, Chongqing Jiaotong Institute, Chongqing 400074, China |
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| Abstract: | Flow regime in the mountain river is characterized by its complex boundary topography,fluctuating water level and rapid flow velocity.A two-dimensional horizontal numerical model,which is solved by the mixed five-diagonal finite difference algorithm,is developed for modeling water level and flow velocity in the mountain river.This model is verified by the topographic and depth-averaged flow velocity data from the Jingangbei-Chaoyangqiao section near Chongqing in the Jialingjiang River.Good agreements are found in comparison with the measured water level and flow velocity. |
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| Keywords: | mountain river 2-D horizontal flow field mixed five-diagonal finite difference algorithm numerical model |
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