计算物理 ›› 2011, Vol. 28 ›› Issue (6): 817-824.

• 研究论文 • 上一篇    下一篇

高能炸药爆速曲率关系的-种计算方法

程俊霞   

  1. 北京应用物理与计算数学研究所, 北京 10088
  • 收稿日期:2010-12-22 修回日期:2011-06-03 出版日期:2011-11-25 发布日期:2011-11-25
  • 作者简介:程俊霞(1977-),女,河南,副研究员,博士生,从事计算流体力学研究,E-mail:cheng_junxia@iapem.ac.cn
  • 基金资助:
    计算物理国家重点实验室基金(9140C690101070C69;9140C6901030803);国家自然科学基金(10901022)资助项目

Numerical Method for Relations Between Detonation Velocity and Curvature of High Explosives

CHENG Junxia   

  1. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
  • Received:2010-12-22 Revised:2011-06-03 Online:2011-11-25 Published:2011-11-25

摘要: 研究平面爆轰波爆轰化学能和状态方程之间的关系,得到平面爆轰波关系式和CJ条件.基于柱坐标系下的-维流体力学方程组,采用坐标变换方法得到含曲率的爆轰波关系式及广义声速条件.在反应区内采用压力平衡和温度平衡的混合规则,在给定的复杂状态方程和复杂反应率下求解,得到PBX9404和PBX9502炸药的爆速和曲率的关系.已知炸药的基本实验数据时,本文的方法可用于研究和调整反应率以及状态方程的参数.

关键词: 爆速, 曲率, 广义声速条件, 反应率

Abstract: We study relation of chemical energy and equation of state of plane detonation,and obtain the plane detonation shock equations and CJ eonditons.Detonation relations depending on curvature are gained with coordinate transformations of one-dimensional eylindrincal fluid dynamics equations.And at the same time we get a general sonic condition.Based on pressure and temperature equillibrium in reaction zone.we get relations between velocity of detonation and curvature of PBX9404 and PBX9502 as equations of state of products and reactants and reaction rates 8re known.As experiment data of explosive are known.tlIe method can be used to adjust parameters of equations of state and reaction rates.

Key words: velocity of detonation, curvature, general sonic condition, reaction rate

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