| 考虑后燃烧效应的TNT空气中爆炸的数值模拟 |
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| 引用本文： | 辛春亮,徐更光,刘科种,秦健.考虑后燃烧效应的TNT空气中爆炸的数值模拟[J].含能材料,2008,16(2):160-163. |
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| 作者姓名： | 辛春亮 徐更光 刘科种 秦健 |
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| 作者单位： | 1. 北京理工大学爆炸科学与技术国家重点实验室,北京,100081
2. 北京理工大学爆炸科学与技术国家重点实验室,北京,100081;海军装备研究院,北京,100073 |
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| 摘 要： | 采用AUTODYN软件对TNT在空气中爆炸进行了数值计算,在计算模型中考虑了负氧平衡炸药的后燃烧效应,并将峰值超压、比冲量、正压作用时间计算结果与相似律公式计算值以及Baker测试数据进行了对比,指出Brode公式计算出的炸药附近空气冲击波峰值超压明显偏大,可能是将爆轰产物造成的峰值超压误认为空气冲击波峰值超压所致.
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| 关 键 词： | 爆炸力学 AUTODYN软件 后燃烧效应 Henrych公式 Brode公式 TNT爆炸 |
| 文章编号： | 1006-9941(2008)02-0160-04 |
| 收稿时间： | 2007/8/13 0:00:00 |
| 修稿时间： | 2007年8月13日 |
Numerical Simulation of TNT Explosion with Post-detonation Burning Effect in Air |
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| XIN Chun-liang,XU Geng-guang,LIU Ke-zhong and QIN Jian.Numerical Simulation of TNT Explosion with Post-detonation Burning Effect in Air[J].Chinese Journal of Energetic Materials,2008,16(2):160-163. |
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| Authors: | XIN Chun-liang XU Geng-guang LIU Ke-zhong and QIN Jian |
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| Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
Naval Academy of Armament, Beijing 100073, China |
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| Abstract: | Numerical simulation of TNT explosion in air was performed by AUTODYN software. Post-detonation burning effect in negative oxygen balance explosive was considered in the numerical calculation model. Calculated results including peak overpressure,specific impulse and positive time were compared with that calculated by similitude equations and experimental data from Baker. Results show that airblast peak overpressure near explosive calculated by Brode equation is much larger than that AUTODTN software and Henrych equation, because the peak pressure of airblast can not be distinguished from that of detonation products. |
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| Keywords: | explosion mechanics AUTODYN software post-detonation burning effect Henrych equation Brode equation TNT explosion |
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