| 激波绕射双方块加速诱导爆轰的数值研究 |
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| 引用本文： | 孙晓晖,陈志华,张焕好,薛大文.激波绕射双方块加速诱导爆轰的数值研究[J].推进技术,2011,32(2):287-291. |
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| 作者姓名： | 孙晓晖 陈志华 张焕好 薛大文 |
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| 作者单位： | 南京理工大学,瞬态物理重点实验室,江苏,南京,210094 |
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| 摘 要： | 基于二维单步化学反应Euler方程,应用Roe/HLL混合格式以及自适应网格加密(AMR)技术,对方管中弱激波绕射双方块障碍物加速诱导爆轰现象进行了数值研究。计算结果表明,弱激波与双方块相互作用并发生绕射、碰撞可有效加速诱导爆轰,且在管道阻塞比为45%左右时可达到最佳效果,与相关实验结果相符。另外,研究了方块个数及排列方式对激波绕射加速诱导爆轰的影响,得到了最佳方块数量与方块排列方式。
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| 关 键 词： | 爆轰 燃烧 方块障碍物 胞格结构 |
| 收稿时间： | 2010/4/28 0:00:00 |
| 修稿时间： | 7/6/2010 12:00:00 AM |
Numerical investigations on detonation induced by diffracted shock waves of double square obstacles |
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| SUN Xiao-hui,CHEN Zhi-hu,ZHANG Huan-hao and XUE Da-wen.Numerical investigations on detonation induced by diffracted shock waves of double square obstacles[J].Journal of Propulsion Technology,2011,32(2):287-291. |
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| Authors: | SUN Xiao-hui CHEN Zhi-hu ZHANG Huan-hao and XUE Da-wen |
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| Institution: | SUN Xiao-hui,CHEN Zhi-hua,ZHANG Huan-hao,XUE Da-wen(National Key Lab.of Transient Physics,Nanjing Univ.of Science and Technology,Nanjing 210094,China) |
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| Abstract: | Based on the one-step chemical reaction Euler equations,the high resolution hybrid Roe/HLL scheme and the AMR(Adaptive mesh refinement) method are employed to study the phenomenon of detonation induced by the collisions of the diffracted shock waves when the shock wave passes around double square obstacles in the tube filled with combustible gases.Our numerical results show that,due to the interactions between the weak shock wave and the two cubes,the shock waves diffract,and their collisions and focuses ca... |
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| Keywords: | Detonation Combustion Square obstacle Cellular structure |
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