摘要
首先探讨了基本结构的含义 ,提出笛卡尔直角坐标系下具体的基本结构 ,讨论了该基本结构的各种剖分方式 ;然后 ,基于有限元直接迭代算法原理 ,具体推导了其中一种剖分方式下的迭代格式 ;最后在正方形网格剖分情形下 ,以拉普拉斯方程为例 。
In this article, the meaning of the fundamental structure is analyzed. The fundamental structure of Cartesian coordinate grid is presented. Some kinds of partition patterns of it are studied. One of concrete iterative forms is deduced based on the theory of DIFE. Finally, based on square grid we analyze the truncation error of various iterative forms of Laplace equation which are determined by various partition patterns.
出处
《物探化探计算技术》
CAS
CSCD
2000年第2期132-136,共5页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
有限元直接迭代算法
DIFE
基本结构
亚基本结构
DIFE
fundamental structure
sub fundamental structure
associative fundamental structure
iterative form
truncation error
