对流扩散方程的迎风变换及相应有限差分方法

IMECH-IR > 力学所知识产出(1956-2008)

	对流扩散方程的迎风变换及相应有限差分方法
	陈国谦; 高智
Source Publication	力学学报
	1991
Volume	23 Issue:4 Pages:418-425
ISSN	0459-1879
Abstract	本文提出所谓迎风变换,将对流扩散方程分解为对流迎风函数和扩散方程,并构造相应的有限差分格式。对流迎风函数以简明的指数解析形式反映对流扩散现象的迎风效应,原则上消除了源于不对称对流算子的困难,能够便利对流扩散方程的数值求解。有限差分格式具有二阶精度和无条件稳定性,算例表明其准确性、收敛速度及对边界层效应的适应能力均明显优于中心差分格式和迎风差分格式。
Keyword	流体力学对流扩散方程迎风变换迎风效应差分格式
Language	中文
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/36132
Collection	力学所知识产出(1956-2008)
Corresponding Author	陈国谦
Recommended Citation GB/T 7714	陈国谦,高智. 对流扩散方程的迎风变换及相应有限差分方法[J]. 力学学报,1991,23,4,:418-425.
APA	陈国谦,&高智.(1991).对流扩散方程的迎风变换及相应有限差分方法.力学学报,23(4),418-425.
MLA	陈国谦,et al."对流扩散方程的迎风变换及相应有限差分方法".力学学报 23.4(1991):418-425.

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