计算物理 ›› 1997, Vol. 14 ›› Issue (6): 835-840.

• 论文 • 上一篇    下一篇

一种严格保证时-空守恒律的数值方法

张增产, 沈孟育   

  1. 清华大学工程力学系北京 100084
  • 收稿日期:1996-04-05 修回日期:1997-01-16 出版日期:1997-11-25 发布日期:1997-11-25
  • 基金资助:
    国家自然科学基金

A NUMERICAL METHOD OF SPACE TIME CONSERVATION

Zhang Zengchan, Shen Mengyu   

  1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084
  • Received:1996-04-05 Revised:1997-01-16 Online:1997-11-25 Published:1997-11-25

摘要: 对文[1]中的时-空守恒元和解元方法(CE/SE)进行了改进和发展。改变了原格式的构造方法,由此得到的新格式不仅保留了原方法的优点,而且格式更为简单,通用性更强,也更容易推广到高阶和多维情形。

关键词: N-S方程, 时-空守恒律, 数值方法, 激波分辨率

Abstract: The nontraditional method of space time conservation element and solution element (CE/SE), developed by chang S C in 1995, is modified. A new constructing method is used to obtain the calculating schemes. These new schemes not only have all the features which the CE/SE method has, but also are simpler, more accurate and have very high resolution of discontinuities.

Key words: Navier Stokes equations, space-time conservation, numerical method, shock resolution

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