| 二维潮流数学模型的四边形等参单元法 |
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| 引用本文： | 窦希萍,李悌来.二维潮流数学模型的四边形等参单元法[J].海洋工程,1995(2). |
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| 作者姓名： | 窦希萍 李悌来 |
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| 作者单位： | 南京水利科学研究院，南京水文水资源研究所 |
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| 摘 要： | 本文在有限差分和有限元法的基础上，采用四边形等参单元，对在河海域进行了潮流数学模型计算，计算表明：该方法既能较好地拟合边界，又可减少网格划分等前期工作，所得结果与实测资料基本一致。
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| 关 键 词： | 潮流，数学模型，有限元，有限差分，四边形网格，等参单元 |
A METHOD OF QUANDRILATERAL ISOPARAMETER ELEMENTS IN 2-D TIDAL CURRENTS MODELING |
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| Don Xiping.A METHOD OF QUANDRILATERAL ISOPARAMETER ELEMENTS IN 2-D TIDAL CURRENTS MODELING[J].Ocean Engineering,1995(2). |
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| Authors: | Don Xiping |
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| Abstract: | Based on the combination of finite difference method and finite element method, the isoparameter quadrilateral elements are adopted in the mathematical modeling of tidal flow for Zhanghe sea region. The quadrilateral grids can well fit the complicated boundaries of coastal engineering, and the quantity of grids can be decreased. The method developed in this paper is of good stability and convergency. It is more convenient when the local grids have to be densified. The verification of calculations shows that the velocities and directions of tidal currents in the model are in good agreement with those measured in this sea region. |
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| Keywords: | Tidal currents Mathematical model Finite element method Finite difference method Quadrilateral grids Isoparameter element |
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