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| 长江土脑子河段曲线二维动床模型研究 | |
| 引用本文： | 谢作涛,罗景,杨芳丽. 长江土脑子河段曲线二维动床模型研究[J]. 武汉大学学报(工学版), 2007, 40(4): 18-21 |
| 作者姓名： | 谢作涛 罗景 杨芳丽 |
| 作者单位： | 1. 清华大学水利水电工程系水沙科学与水利水电工程国家重点实验室(筹),北京,100084;长江勘测规划设计研究院,湖北,武汉,430010 2. 武汉大学期刊社,湖北,武汉,430072 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： | 采用控制体积法与SIMPLE算法对一般曲线坐标下控制方程进行离散和求解,建立了长江土脑子河段曲线二维动床模型.模型控制方程离散时物理量布置采用非交错网格,避免了采用交错网格时所需的大量插值计算,提高了计算效率.模型较全面地考虑了非均匀悬移质及推移质运动,具有较好的普遍适用性.通过长江土脑子河段三峡水库蓄水以后2004年3~6月实测水沙资料对模型进行了验证,计算结果表明模型能够合理地反映土脑子河段水沙运动及河床变形规律. |
| 关 键 词： | 一般曲线坐标系 同位网格 控制体积法 SIMPLE算法 全沙模型 |
| 文章编号： | 1671-8844（2007）01-0018-04 |
| 修稿时间： | 2006-12-10 |
Study of 2-D horizontal movable bed modeling in generalized curvilinear coordinate at Tunaozi reach of Yangtze River |
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| XIE Zuotao,LUO Jing,YANG Fangli. Study of 2-D horizontal movable bed modeling in generalized curvilinear coordinate at Tunaozi reach of Yangtze River[J]. Engineering Journal of Wuhan University, 2007, 40(4): 18-21 | |
| Authors: | XIE Zuotao LUO Jing YANG Fangli |
| Affiliation: | 1. Dept. of Hydraulic and Hydropower Engineering, Tsinghua Univ. , State Key Laboratory of Hydroscience and Engineering, Beijing 100084; 2. Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, China 3. Journals Press, Wuhan University, Wuhan 430072, China; 4. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
| Abstract: | A model in generalized curvilinear coordinate is presented to simulate 2-D horizontal flow and sediment. Governing equations of the model are discretized by control volume method, and non-staggered grids and SIMPLE algorithm are introduced to simplify the program during the discretization. This model is used to simulate the movement of flow and sediment in Tunaozi reach in the Yangtze River.The calculating results indicate this model can correctly reflect the movement rules of flow and sediment;and it is verified that the model can be applied to engineering practice. |
| Keywords: | generalized curvilinear coordinate non-staggered grids control volume method SIMPLE algorithm total sediment mathematical model |
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