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| 一、二维嵌套模型在河口工程中的应用 | |
| 引用本文： | 郑国栋,黄东,赵明登,荣小红.一、二维嵌套模型在河口工程中的应用[J].水利学报,2004,35(1):0022-0027. |
| 作者姓名： | 郑国栋 黄东 赵明登 荣小红 |
| 作者单位： | 1. 广东省水利水电科学研究院,广东,广州,510610;武汉大学,水电学院,湖北,武汉,4300723 2. 广东省水利水电科学研究院,广东,广州,510610 3. 武汉大学,水电学院,湖北,武汉,4300723 4. 广东省水电建设工程公司,广东,广州,510610 |
| 摘 要： | 在圣维南方程组基础上建立了适用于大型复杂河网计算的一维河网数学模型,并在工程局部嵌套平面二维数学模型。计算中先采用三级联解法求解整个一维河网模型,以一维模型计算结果作为边界条件代入二维模型计算,对控制方程进行了泊松变换,再运用有限分析九点格式求解,从而减少了在完全耦合解时必需的迭代次数,缩短了计算时间。最后以珠江三角洲虎门出海口上的虎门大桥工程河段为例,对模型进行了验证计算。 |
| 关 键 词： | mathematical model coupling model river networks finite analysis method |
| 文章编号： | 0559-9350(2004)01-0022-06 |
| 修稿时间： | 2002年7月10日 |
Application of 1-D mathematical model coupled with 2-D model to estuarine engineering |
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| ZHENG Guo dong.Application of 1-D mathematical model coupled with 2-D model to estuarine engineering[J].Journal of Hydraulic Engineering,2004,35(1):0022-0027. | |
| Authors: | ZHENG Guo dong |
| Affiliation: | ZHENG Guo-dong~ |
| Abstract: | Based on the Saint-Venant equation the 1-D mathematical model for calculating complicated river networks is established. The model is coupled with 2-D plane mathematical model in calculating the flow field in the vicinity of engineering in estuary. The three-steps-solving method is applied to solve the model for the whole networks, and then the calculation result is used as the boundary condition for the calculation of 2-D model. After Possion transformation of the control equation, the nine-point-scheme of finite analysis method is applied to solve the 2-D model. Consequently, the iteration of calculation is simplified and the computation is accelerated. An example is given for demonstration. |
| Keywords: | mathematical model coupling model river networks finite analysis method |
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