General Discrete Scheme of Finite Difference Method Based on Node Set Vector for Two Dimensional Poisson Equation

Zhizhong Luo
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Abstract

This paper presents a general discrete scheme of finite difference method based on node set vector for numerical computation of two dimensional Poisson equation, it firstly achieved the relationships between various derivatives by Poisson equation, then deduced simplification of truncated Taylor series by the relationships, based on the simplified expression, the paper analyzed the basic discrete scheme of any high order, investigated general scheme of interior node and boundary node, at last the paper conducted the comparisons of discrete scheme with other forms put forth in other paper, the results testified that the general discrete scheme of any order proposed by this paper is true.
基于节点集向量的二维泊松方程有限差分法的一般离散格式
本文提出了二维泊松方程数值计算中基于节点集向量的有限差分法的一般离散格式,首先通过泊松方程得到了各导数之间的关系,然后通过这种关系推导出截断泰勒级数的简化表达式,在此基础上分析了任意高阶的基本离散格式,研究了内节点和边界节点的一般格式。最后将离散格式与其他文献提出的离散格式进行了比较,结果证明了本文提出的任意阶的一般离散格式是正确的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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