IMECH-IR  > 力学所知识产出(1956-2008)
NS方程激波计算的摄动有限差分方法
Alternative TitlePeturbational finite difference scheme for shock-wave computing of Navier-Stokes equations
申义庆; 高智; 杨国伟
Source Publication空气动力学学报
2006
Volume24Issue:3Pages:335-339
ISSN0258-1825
Abstract摄动有限差分(PFD)方法从一阶迎风差分格式出发,将差分系数展开为网格步长的幂级数,通过提高修正微分方程的逼近精度来获得更高精度的差分格式。由于格式基于一阶迎风格式,因此具有迎风效应、网格节点少等特点。本文首先通过对Burgers方程的摄动差分格式的推导,将摄动有限差分格式引入时间相关法的计算,并构造了守恒形式的摄动有限差分格式,然后推广到一维Navier-Stokes方程组的计算。数值比较研究表明:本文构造的NS方程摄动有限差分格式具有比一阶迎风较高的精度和分辨率,而且保持了一阶迎风格式的无振荡性质。
Keyword摄动有限差分格式 Ns方程 激波计算
Subject Area力学
Indexed ByEI ; CSCD
Language中文
CSCD IDCSCD:2543268
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/17370
Collection力学所知识产出(1956-2008)
Recommended Citation
GB/T 7714
申义庆,高智,杨国伟. NS方程激波计算的摄动有限差分方法[J]. 空气动力学学报,2006,24,3,:335-339.
APA 申义庆,高智,&杨国伟.(2006).NS方程激波计算的摄动有限差分方法.空气动力学学报,24(3),335-339.
MLA 申义庆,et al."NS方程激波计算的摄动有限差分方法".空气动力学学报 24.3(2006):335-339.
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