| 二次长方体有限元的一个外推 |
| |
| 作者姓名： | 韩明华 张杰华 |
| |
| 作者单位： | 凯里学院教育科学学院; |
| |
| 基金项目： | 凯里学院院级规划课题资助项目(z0801) |
| |
| 摘 要： | 对于三维Poisson边值问题,利用离散Green函数与Green函数,结合三维二次积分恒等式的结论及证明技巧,给出了均匀长方体剖分下二次长方体有限元的一个外推结果,提高了有限元解的精度阶.
|
| 关 键 词： | 长方体 二次元 外推 |
Extrapolation of a quadratic block finite elements |
| |
| Authors: | HAN Ming-hua ZHANG Jie-hua |
| |
| Institution: | HAN Ming-hua,ZHANG Jie-hua (Institute of Educational Science,Kaili University,Kaili 556000,China) |
| |
| Abstract: | For Poisson boundary value problems in three dimensions,using the properties of the discrete Green's function and Green's function,and combined with the conclusions and proof techniques of integral identity,a result of extrapolation for the quadratic block finite element is given under a uniform subdivision,which enhances the accuracy order of the FEM approximation solutions of Poisson equation. |
| |
| Keywords: | block quadratic finite element extrapolation |
| 本文献已被 CNKI 等数据库收录！ |
|
