| 爆炸冲击波在复杂坑道内传播规律的数值研究 |
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| 引用本文： | 穆朝民,任辉启,李永池,辛凯.爆炸冲击波在复杂坑道内传播规律的数值研究[J].爆破器材,2008,37(5). |
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| 作者姓名： | 穆朝民 任辉启 李永池 辛凯 |
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| 作者单位： | 中国科学技术大学近代力学系,安徽合肥,230026;总参工程兵科研三所,河南洛阳,471023 |
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| 摘 要： | 研究二维爆炸流场中空气冲击波在复杂坑道内传播的机制.对多物质流采用Euler方法和NND格式,对爆轰产物采用JWL状态方程;自行编制二维爆炸模拟计算程序.试验结果与数值模拟基本相符,反映了爆炸冲击波在坑道内传播的详细过程.结果表明:采用穿廊式出入口,可以削弱进入坑道内55%的空气冲击波强度;采用穿廊加扩散室可以削弱进入坑道75%的冲击波强度.
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| 关 键 词： | 爆炸力学 数值模拟 爆炸冲击波 复杂坑道 |
Numerical Investigation on Blast Shock Wave Propagation in the Complex Tunnel |
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| Mu Chaomin,Ren Huiqi,Li Yongchi,Xin Kai.Numerical Investigation on Blast Shock Wave Propagation in the Complex Tunnel[J].Explosive Materials,2008,37(5). |
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| Authors: | Mu Chaomin Ren Huiqi Li Yongchi Xin Kai |
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| Affiliation: | Mu Chaomin,Ren Huiqi,Li Yongchi,Xin KaiDepartment of Modern Mechanics,University of Science , Technology of China(Anhui Hefei,230026) Luoyang Institute of Hydraulic Engineering , Technology(He\'nan Luoyang,471023) |
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| Abstract: | Numerical simulations were carried out study the mechanism of blast shock wave generation and propagation in complex tunnel.Euler equations were solved by the NND scheme in order to capture the blast shock wave propagation and reflection in the tunnel.Two dimension numerical codes were made by using the JWL equation of state for product.Numerical results were in good agreement with experiments.It is shown that the magnitude of blast shock wave can decrease 55% by using covered way,and the magnitude can decr... |
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| Keywords: | mechanics of explosion numerical simulation blast shock wave complex tunnel |
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