计算物理 ›› 2014, Vol. 31 ›› Issue (6): 648-658.

• 论文 • 上一篇    下一篇

一种捕捉多向刚性爆轰波的激波定位随机投影方法

王建航1, 陈方1, 刘洪1, 王兰2, 郑忠华2   

  1. 1. 上海交通大学航空航天学院, 上海 200240;
    2. 中国空气动力学研究与发展中心, 绵阳 621000
  • 收稿日期:2013-10-27 修回日期:2014-02-20 出版日期:2014-11-25 发布日期:2014-11-25
  • 通讯作者: 陈方,E-mail:fangchen@sjtu.edu.cn
  • 作者简介:王建航(1989-), male, master candidate, research in CFD, E-mail:wangxiefu89@sjtu.edu.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China(Grant No.11102111)

A Shock-pinned Random Projection Method for Multi-directional Stiff Detonation Capturing

WANG Jianhang1, CHEN Fang1, LIU Hong1, WANG Lan2, ZHENG Zhonghua2   

  1. 1. School of Aeronautics and Astronautics,Shanghai Jiao Tong University, Shanghai 200240, China;
    2. China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2013-10-27 Revised:2014-02-20 Online:2014-11-25 Published:2014-11-25
  • Supported by:
    Supported by the National Natural Science Foundation of China(Grant No.11102111)

摘要: 提出一种激波定位随机投影方法,利用当地随机投影,引入激波指示器并提出恰当的判定当地投影区域的规则,使爆轰波多向推进的问题得以解决。数值实验表明,激波定位随机投影方法不仅适用于爆轰波的多向推进,还能高效求解刚性反应方程,易于推广到三维情况。

关键词: 随机投影, 爆轰波, 刚性反应源项, 激波指示器

Abstract: A shock-pinned random projection method( SRPM) is proposed. To overcome difficulty of multidirectional propagation,local random projection is applied by introducing a shock indicator along with proper rules for choosing local projection zones around shocks in each reaction step. Numerical experiments are presented. It shows that SRPM is appropriate for detonation waves with multi-directional propagation,which is high-efficient in solving stiff reactive equations and extensible to 3D situations.

Key words: random projection, detonation, stiff source term, shock indicator

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