| 基于非结构网格的分蓄洪区水沙演进数学模型研究 |
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| 引用本文： | 张细兵,欧治华,崔占峰,孙先.基于非结构网格的分蓄洪区水沙演进数学模型研究[J].长江科学院院报,2011,28(4):75-79. |
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| 作者姓名： | 张细兵 欧治华 崔占峰 孙先 |
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| 作者单位： | 1. 长江科学院 河流研究所， 武汉 430010 ； 2. 武汉大学 水利水电学院， 武汉 430072 ； 3. 荆州市长江河道管理局 洪湖分局， 湖北 洪湖 433200 |
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| 基金项目： | 水利部公益性行业专项经费项目(200901003); 公益院所基金项目(CKSF2011001) |
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| 摘 要： | 基于非结构三角形网格,采用有限体积算法,建立了分蓄洪区水沙演进数学模型.模型网格能很好适应分蓄洪区复杂的边界条件,应用了DEM数字模型插值技术,能快速获取计算域的地形数据,实现了洪水演进过程中泥沙输移和河床冲淤变形的同步模拟.模型中还对网格划分、数值离散、动边界及干河床处理等关键技术进行了研究,并提供了相应的处理方法....
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| 关 键 词： | 非结构网格 分蓄洪区 洪水演进 泥沙冲淤 数值模拟 |
Unstructured Grid Model of Flow and Sediment Evolution in Flood Diversion and Storage Area |
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| ZHANG Xi-bing,OU Zhi-hua,CUI Zhan-feng,SUN Xian.Unstructured Grid Model of Flow and Sediment Evolution in Flood Diversion and Storage Area[J].Journal of Yangtze River Scientific Research Institute,2011,28(4):75-79. |
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| Authors: | ZHANG Xi-bing OU Zhi-hua CUI Zhan-feng SUN Xian |
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| Affiliation: | 1.River Research Institute,Yangtze River Scientific Research Institute, Wuhan 430010 China ； 2.College of Water Resources and Hydroelectric Engineering, Wuhan University, Wuhan 430072 China ； 3.Honghu Sub-bureau, Jingzhou River Management Bureau of Yangtze River, Honghu 433200 China |
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| Abstract: | Based on unstructured triangular grid and Finite Volume Method,a flow and sediment evolution model in flood diversion and storage area is founded in this paper.One advantage is that the model grids can adapt to complicated boundary conditions well,and the terrain data of the computational domain are obtained quickly by using DEM numerical model interpolation technology.Another advantage is that the sediment transport and riverbed deformation can be simulated synchronously.Key techniques including grid parti... |
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| Keywords: | unstructured grid flood diversion and storage area flood evolution sediment erosion and deposition numerical simulation |
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