首页 | 本学科首页   官方微博 | 高级检索  
     

不同高度强爆炸早期火球数值研究
引用本文:田宙,乔登江,郭永辉.不同高度强爆炸早期火球数值研究[J].兵工学报,2009,30(8):1078-1083.
作者姓名:田宙  乔登江  郭永辉
作者单位:西北核技术研究所,陕西,西安,710024;西北核技术研究所,陕西,西安,710024;西北核技术研究所,陕西,西安,710024
摘    要:为评估强爆炸的毁伤效应,采用一维球对称辐射流体力学方程组,数值研究了不同高度强爆炸早期火球阵面、弹壳)中击波的形成发展过程,对计算结果进行了相似律分析。结果表明:随爆炸高度增加,火球阵面、弹壳冲击波扩张速度加快,火球扩张过渡阶段开始结束位置及持续范围增加,火球中心温度下降加快,辐射能量降低过程变慢;在火球阵面以冲击波扩张传播以后,火球阵面参量基本满足爆炸相似律。

关 键 词:爆炸力学  强爆炸火球  辐射流体力学  数值研究  不同高度

Numerical Investigation of Early Fireball of Strong Explosion for Different Altitudes
TIAN Zhou,QIAO Deng-jiang,GUO Yong-hui.Numerical Investigation of Early Fireball of Strong Explosion for Different Altitudes[J].Acta Armamentarii,2009,30(8):1078-1083.
Authors:TIAN Zhou  QIAO Deng-jiang  GUO Yong-hui
Affiliation:Northwest Institute of Nuclear Technology, Xi’an 710024,Shaanxi, China
Abstract:For the evaluation of damage effects of strong explosion,the formation and developmental processes of radiation front and case shock of early fireball of strong explosion for the different altitudes were calculated numerically by the equations of one-dimensional radiation hydrodynamics with spherical symmetry,the calculated results were analyzed using scaling theory.The results show that the expanding velocity of radiation front and case shock increases,the beginning and ending positions and sustaining area...
Keywords:explosion mechanics  fireball of strong explosion  radiation hydrodynamics  numerical investigation  different altitudes  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《兵工学报》浏览原始摘要信息
点击此处可从《兵工学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号