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二维有限分析系数的近似计算
TWO-DIMENSIONAL APPROXIMATE FINITE ANALYTIC COEFFICIENTS
【摘要】 有限分析法是一种有效的用于流体计算的数值方法。但是用传统方法来计算有限分析系数相当繁琐、耗时,在有些情况下不够准确甚至完全失真。本文给出一个近似公式,利用它可很方便地求出有限分析系数,误差在0.003以内。
【Abstract】 The Finite Analytic Method (FA )is an efficient numerical method to solve the fluid flow problems . However , the calculation of Finite Analytic Coefficients by the conventional method is bored and time consuming . Moreover ,in some extreme cases the resulted coefficients may become totally erroneous. This paper presents an approximate formula to determine FA coefficients . which is convenient to use. The error caused by the approximaion is less then 0.003.
【关键词】 有限分析法;
近似公式;
对流扩散方程;
【Key words】 Finite Analytic Method; approximate formula; convection - diffusion equation.;
【Key words】 Finite Analytic Method; approximate formula; convection - diffusion equation.;
- 【文献出处】 计算物理 ,Chinese Journal of Computation Physics , 编辑部邮箱 ,1993年03期
- 【被引频次】2
- 【下载频次】23