冯新龙, 王焕焕, 阿布都热西提·阿布都外力. 解决水质污浊的扩散问题的研究[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2001, (2).DOI：
解决水质污浊的扩散问题的研究
摘要
利用差分方法对水质污浊的扩散问题进行研究
针对不规则区域的初边值问题构造了高精度的差分格式
并对初边值条件进行了恰当的处理 .首先给出了三层显格式绝对不稳定的证明
其次利用θ =1/ 2时的加权隐格式
对该问题进行数值求解
获得了满意的数值结果
Abstract
In this paper
we study the diffusion problem of water pollution with the finite difference method and concept a difference scheme about the initial and boundary conditions of the irregular region
that is high accuracy
and properly deal with the initial and boundary value problem.First
we prove the absolutely instable on the tree level explicit difference scheme and then apply weighted implicit difference scheme with \$θ=12
\$ we get numerical solution about this problem
and obtain satisfied numerical results.
关键词
Keywords
references
L apidus L,Pinder G F.Nummerical solution of partial differential equ Itions in science and engineering[M].Princeton:John Wiley & Sons,1982 .
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