| 爆炸冲击波绕过墙体的数值模拟研究 |
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| 引用本文： | 穆朝民,王光勇. 爆炸冲击波绕过墙体的数值模拟研究[J]. 工程爆破, 2008, 14(2): 16-19 |
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| 作者姓名： | 穆朝民 王光勇 |
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| 作者单位： | 中国科学技术大学近代力学系,合肥,230026;河南理工大学土木工程学院,河南焦作,454000;中国科学技术大学近代力学系,合肥,230026 |
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| 摘 要： | 利用ALE算法和炸药爆轰产物的JWL状态方程,对空气冲击波绕过墙体的环流现象进行了数值模拟,得到了在爆源周围有障碍物的爆炸场初始发展和绕过墙体环流的情况,分析了空气冲击波的绕流规律。试验结果与数值模拟基本相符,反映了爆炸波绕过防爆墙的详细过程。通过对数值模拟和试验结果的分析,得到了爆炸波绕流的内在机理,为防爆墙的设计与加固提供依据和参考。
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| 关 键 词： | 爆炸力学 数值模拟 爆炸冲击波 环流超压 |
| 文章编号： | 1006-7051(2008)02-0016-04 |
| 修稿时间： | 2007-12-28 |
STUDY ON NUMERICAL SIMULATION OF EXPLOSIVE SHOCK WAVE ROUNDING WALL |
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| MU Chao-min,WANG Guang-yong. STUDY ON NUMERICAL SIMULATION OF EXPLOSIVE SHOCK WAVE ROUNDING WALL[J]. Engineering Blasting, 2008, 14(2): 16-19 |
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| Authors: | MU Chao-min WANG Guang-yong |
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| Abstract: | Using ALE algorithm and the JWL state equation for the product of explosive shock wave,the numerical simulation of the shock wave rounding the wall was conducted.The initial development of explosive field and the circulation current behavior were obtained and the law of shock wave rounding the wall was analyzed.Both experimental and numerical results were in good agreement,which showed the inherent mechanism of blast wave rounding the wall and provided a reference for reinforcement mechanism study of wall for explosive atmospheres. |
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| Keywords: | Mechanics of explosion Numerical simulation Explosive shock wave Circulation current overpressure |
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