SOME LAWS TO AFFECT THE RESULTS IN NUMERICAL CALCULUS

被引：0

作者：

Chen Hongli ^{[1
]}

Qiao Xin

Quan Wei

Bao Zhigang ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Fac Mech Engn & Automat, Hangzhou 310018, Zhejiang, Peoples R China

来源：

4TH INTERNATIONAL CONFERENCE ON ADVANCED COMPUTER THEORY AND ENGINEERING ( ICACTE 2011) | 2011年

关键词：

Numerical method; Differential equation; Nodes; Relaxation factor; Terminate condition;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

To learn how the number of nodes, relaxation factor and terminate condition effect numerical result in numerical calculus, two common used differential equations and Laplace equation were solved while finite volume method (FVM) was used as discretization method. The study shows that there is an optimum number of nodes, the numerical result will be more inaccurate while the number of nodes is smaller or bigger, and that there is an optimum terminate condition, the numerical result will be more inaccurate while the terminate condition is smaller or bigger, and that relaxation factor usually is 1, 1.1 or 1.9 for linear equation, and usually is 0.1 or 0.9 for nonlinear equation.

引用

页码：603 / 606

页数：4