计算物理 ›› 2005, Vol. 22 ›› Issue (4): 329-336.

• 研究论文 • 上一篇    下一篇

利用通量限制思想改进紧致格式

涂国华, 罗俊荣   

  1. 中国空气动力研究与发展中心国家计算流体力学实验室, 北京 100083
  • 收稿日期:2004-04-09 修回日期:2004-10-12 出版日期:2005-07-25 发布日期:2005-07-25
  • 作者简介:涂国华(1977-),男,四川中江,博士生,主要从事计算流体力学和流动稳定性方面的研究.

An Improvement to Compact Schemes with the Limiting Flux Method

TU Guo-hua, LUO Jun-rong   

  1. China Aerodynamics Research and Development Center, National CFD Laboratory, Beijing 100083, China
  • Received:2004-04-09 Revised:2004-10-12 Online:2005-07-25 Published:2005-07-25

摘要: 利用通量限制思想改进紧致格式计算有间断流场的性能,并设计出一种限制器,该限制器被运用在一系列3至8阶的紧致格式上.数值实验表明,通量限制型紧致格式不仅具有较高的精度和分辨率,而且还能有效地抑制非物理振荡,适用于各种高低Mach数的流动,捕捉到的流场间断所占网格点数少.

关键词: 紧致格式, 通量限制, 高精度计算格式, 差分格式, 激波捕捉

Abstract: Limiting flux method is used to improve the compact schemes for discontinuous fluid problems. A limiter is contrived. A series of calculation with third-order to 8th-order schemes are given. It is shown that the limiting flux method provides solutions with high-order accuracy and high resolutions. And it restrains numerical oscillations as well. The limited flux compact scheme is robust in a large range of Mach numbers. It is able to capture discontinuities in fewer grids.

Key words: compact scheme, limit flux, high-order scheme, differential scheme, shock capture

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