计算物理 ›› 2008, Vol. 25 ›› Issue (6): 701-704.

• 研究论文 • 上一篇    下一篇

用高精度有限差分法模拟烧蚀瑞利-泰勒不稳定性

范征锋, 罗纪生   

  1. 天津大学 机械学院 流体力学专业, 天津 300072
  • 收稿日期:2007-07-04 修回日期:2007-09-18 出版日期:2008-11-25 发布日期:2008-11-25
  • 作者简介:范征锋(1980-),男,河北,学士,从事烧蚀RT不稳定性方面的研究,天津大学机械学院154信箱300072.

High-order Finite Difference Method for Simulation of Ablative Rayleigh-Taylor Instability

FAN Zhengfeng, LUO Jisheng   

  1. Department of Fluid Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
  • Received:2007-07-04 Revised:2007-09-18 Online:2008-11-25 Published:2008-11-25

摘要: 求解烧蚀面附近流场的定常解,并以此作为基本流实现用高精度的WENO格式对烧蚀瑞利-泰勒不稳定性的数值模拟.线性增长率与Lindl公式以及线性稳定性分析给出的结果相符合,证明该数值模拟方法的准确性与精度,该方法还具有较好的界面变形捕捉能力.

关键词: 瑞利-泰勒不稳定性, 高精度有限差分法, WENO

Abstract: Steady state flow field around ablation front is solved and taken as a basic flow in the simulation of ablative Rayleigh-Taylor instability with a high-order WENO scheme. Linear growth rate simulated agrees with Lindl formula and linear stability analysis. It indicates validity and accuracy of the method. The method shows good ability in capturing interface deformation.

Key words: Rayleigh-Taylor instability, high-order finite difference method, WENO

中图分类号: