| 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 |
| 一、二维嵌套模型在河口工程中的应用 |
| Application of 1-D mathematical model coupled with 2-D model to estuarine engineering |
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| 英文关键词: mathematical model coupling model river networks finite analysis method |
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| 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. |
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