CTVD格式数值计算非均质炸药爆轰问题

计算物理 ›› 2005, Vol. 22 ›› Issue (4): 358-364.

CTVD格式数值计算非均质炸药爆轰问题

楼建锋, 于恒

北京应用物理与计算数学研究所, 北京 100088

收稿日期:2004-04-12 修回日期:2004-06-23 出版日期:2005-07-25 发布日期:2005-07-25
作者简介:楼建锋(1980-),男,浙江义乌,硕士,从事计算流体力学方面的研究.

Numerical Simulations of Detonation in Heterogeneous Explosives in a CTVD Scheme

LOU Jian-feng, YU Heng

Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Received:2004-04-12 Revised:2004-06-23 Online:2005-07-25 Published:2005-07-25

摘要/Abstract

摘要： 将高分辨率激波捕捉格式CTVD格式拓展应用到非均质炸药爆轰的数值模拟问题.增加了化学反应率控制方程,引入Lee-Tarver点火成长模型,未反应的固体炸药和化学反应气体产物都使用JWL形式状态方程.数值模拟了非均质固体炸药PBX-9404和TATB的冲击起爆问题.获得了较高的爆轰波分辨率和光滑解区的数值精度,对具有复杂物态方程形式的固体炸药爆轰问题,CTVD格式具有简单实用、高效和高分辨的特点.

关键词: CTVD格式, 非均质炸药, 冲击起爆, 化学反应率

Abstract: A simple and practical high-resolution shock-capturing numerical scheme,CTVD, is applied to numerical simulation of detonation in heterogeneous explosives,in which Lee-Tarver's ignition and growth model is employed,and JWL (Jones-Wilkins-Lee) equation of state is used to both unreacted explosives and reacted gas product. Numerical results for detonation of heterogeneous explosives PBX-9404 and TATB are shown.High resolution in detonation wave and high accuracy in smooth solution region are obtained.Especially in the complicated state equation,numerical results exhibit simplicity,efficiency, and high resolution of the CTVD scheme.

Key words: CTVD scheme, heterogeneous explosives, detonation, reaction rate

中图分类号:

O381

楼建锋, 于恒. CTVD格式数值计算非均质炸药爆轰问题[J]. 计算物理, 2005, 22(4): 358-364.

LOU Jian-feng, YU Heng. Numerical Simulations of Detonation in Heterogeneous Explosives in a CTVD Scheme[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2005, 22(4): 358-364.