一类混合MUSCL型E格式收敛性的研究

来源 :数值计算与计算机应用 | 被引量 : 0次 | 上传用户:ieven1989
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this paper, generalized from some monotone scheme, a class of MUSCL- Type finite difference E schemes is presented. It is proved to have second order accuracy both in space and time. And applying the theory of entropy measure- valued solution, we proved the family of approximate solutions converge to the unique entropy weak l∞ -solution. Based on the character in 1-D,the convergence to the unique entropy weak l∞ -solution is proved in 2-D. Finally, we performed numerical experiments with these schemes for system of Euler equations in both 1-D and 2-D, and the results showed that these schemes had high resolution ability for shocks, rarefactions and contact discontinuities. In this paper, generalized from some monotone scheme, a class of MUSCL- Type finite difference E schemes is presented. It is proved to have second order accuracy both in space and time. And applying the theory of entropy measure- valued solution, we proved the family of approximate solutions converge to the unique entropy weak l∞-solution. Based on the character in 1-D, the convergence to the unique entropy weak l∞-solution is proved in 2-D. Finally, we performed numerical experiments with these schemes for system of Euler equations in both 1-D and 2-D, and the results showed that these schemes had high resolution ability for shocks, rarefactions and contact discontinuities.
其他文献
在北京一条繁华、时尚的步行街,举办一场卡车的品牌活动,或许这样的创意只有像沃尔沃这样的行业先锋能够想得出来。2011年8月27日,北京世贸天阶,以全民环保为主题的“沃尔沃
In this paper, we construct the general odd degree semi-orthogonal multi-knots spline wavelets space with point value vanishing properties under energy inner product, and present two kinds of low orde
当前,我国移动通信技术发展迅猛,通信网络市场的竞争愈发激烈.通讯网络运营商对客户服务能力决定了竞争力的强弱,而通讯网络设备的维护与优化工作恰好决定了运营商的服务能力
期刊
@@
随着云计算技术受到广泛的关注,云存储技术也得到了广泛的重视.但是云存储相较于传统存储方式而言,其所面临的安全挑战更为严峻.本文主要分析了物联网环境下云数据存储安全及
This paper shows two approaches to improve the performance of numeral al- gebra software by describing block algorithms in LAPACK. The block algorithms can make up higher level and more effcient BLAS
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
长距离输水管线的水锤防护分析主要包括事故停泵以及提升泵站启泵时的管线水锤防护.输水管线的水锤防护方案有多种选择,但对于长距离输水管线,选择一个积极有效的水锤防护方
网络攻击与防范是一对矛盾,只有洞悉网络攻击与嗅探的原理,才能搭建与网络攻击相抗衡的防护体系.Nmap是用来探测计算机网络上的主机和服务信息及其漏洞的一种安全扫描器,本文