摘要
本文分析了逆风格式、格式和修正Dennis格式随网格Reynolds数变化的性质,构造了相应的半隐差分格式,它们具有无条件稳定性和无条件单调性。数值例子说明这些格式可以计算高Reynolds的定态流动问题。
With the varieties of the cell Reynolds number,We analyse the properties of the upwind scheme, the Samarskii Scheme and the modified Dennis scheme for convection- diffusion equations. Three semi- implicit schemes which are unconditionally stable and monotonic are present by those schemes. Numerical tests have shown these semi-implicit can be applied to solve for the steady fluid flow problems of high Reynolds.
出处
《计算物理》
CSCD
北大核心
1991年第2期157-164,共8页
Chinese Journal of Computational Physics
关键词
对流扩散方程
差分格式
单调性
convection- diffusion equation, finite difference scheme, stability, monotonicity.
