计算物理 ›› 2001, Vol. 18 ›› Issue (1): 27-32.

• 论文 • 上一篇    下一篇

RICHTMYER-MESHKOV不稳定性的数值模拟

严长林, 孙德军, 尹协远, 童秉纲   

  1. 中国科学技术大学力学和机械工程系, 安徽 合肥 230026
  • 收稿日期:1999-03-26 修回日期:2000-02-12 出版日期:2001-01-25 发布日期:2001-01-25
  • 作者简介:严长林(1970-),男,博士生,从事非定常流和涡运动及计算流体力学方面的研究.
  • 基金资助:
    国家自然科学基金资助项目

NUMERICAL SIMULATIONS OF RICHTMYER-MESHKOV INSTABILITY

YAN Chang-lin, SUN De-jun, YIN Xie-yuan, TONG Bing-gang   

  1. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, P R China
  • Received:1999-03-26 Revised:2000-02-12 Online:2001-01-25 Published:2001-01-25

摘要: 采用了自适应的非结构网格和基于有限体积法的二阶Godunov格式,数值模拟了在激波作用下两种不同密度流体的交界面的演化过程.着重讨论了Richtmyer Meshkov不稳定性以及斜压效应在交界面演化过程中的作用,并给出了交界面的扰动增长率.

关键词: 自适应非结构网格, 数值模拟, Godunov格式, 斜压效应, Richtmyer-Meshkov不稳定性

Abstract: An approach combining the adaptive unstructured grids and the high order Godunov type scheme based on the finite volume method is applied to simulate the evolution of the interface between two layers of fluid with different densities.The research focuses on Richtmyer Meshkov instability and baroclinic effect in the evolution of the interface.The perturbation growth rates of the interface are also presented.

Key words: adaptive unstructured grid, numerical simulation, Godunov scheme, baroclinic effect, Richtmyer Meshkov instability

中图分类号: