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。
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.
出处
《海洋工程》
CSCD
北大核心
1995年第2期47-53,共7页
The Ocean Engineering
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
Tidal currents
Mathematical model
Finite element method
Finite difference method
Quadrilateral grids
Isoparameter element
