计算物理 ›› 2011, Vol. 28 ›› Issue (5): 713-718.

• 研究论文 • 上一篇    下一篇

地下爆炸空腔压力和温度历程数值模拟

王铁良, 曹渊, 张建鑫   

  1. 西北核技术研究所, 陕西 西安 710024
  • 收稿日期:2010-09-16 修回日期:2010-12-16 出版日期:2011-09-25 发布日期:2011-09-25
  • 作者简介:王铁良(1966-),男,陕西富平,副研究员,硕士,主要从事计算力学研究。E-mail:waagtiel@263.net

Numerical Simulation of Cavity in Underground Pressure and Temperature Detonation

WANG Tieliang, CAO Yuan, ZHANG Jianxin   

  1. Northwest Institute of Nuclear Technology, Xi'an 710024
  • Received:2010-09-16 Revised:2010-12-16 Online:2011-09-25 Published:2011-09-25

摘要: 将气体的渗透、气体与空腔壁的辐射换热、气体与周围介质的热传导三种因素相结合,建立地下爆炸空腔稳定后气体温度和压力变化的数学模型,编制-维球对称有限体积数值模拟程序.用该程序对美国内华达试验场冲积土介质中-次地下核爆炸空腔温度和压力历程进行数值模拟,并对压力监测结果进行分析.

关键词: 地下爆炸, 空腔压力, 数学模型

Abstract: A mathematical model is built for cavity temperature and pressure in underground detonation after the completion of cavity growth.It incorporates gas permeation in porous media,heat radiation between gas and cavity-wall and heat conduction between gas and ambient media.A corresponding one-dimensional code on the basis of spherical symmetry finite volume method is developed. Catty pressure and temperature of an underground nuclear test in alluvium at Nevada Test Site are computed.Measurment data of cavity pressure are analyzed in detail.

Key words: underground detonation, cavity pressure, mathematical model

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