| 单循环脉冲爆轰发动机内外流场的动力学结构 |
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| 引用本文： | 于陆军,范宝春,董刚,归明月.单循环脉冲爆轰发动机内外流场的动力学结构[J].空气动力学学报,2007,25(3):357-361. |
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| 作者姓名： | 于陆军 范宝春 董刚 归明月 |
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| 作者单位： | 南京理工大学瞬态物理实验室,江苏,南京,210094 |
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| 基金项目： | 国家自然科学基金资助项目(50336030) |
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| 摘 要： | 对脉冲爆轰发动机由高温火团引发的甲烷-空气混合气体爆轰过程和管内、外轴对称流场分布进行数值模拟,考虑了CH4-O2-N2的19个基元反应和14种组份。计算结果反映了爆轰管出口端附近区域的激波衍射,涡环及复杂的涡与激波相互作用情况等,描绘了管内、外流场的动力学结构。
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| 关 键 词： | PDE 数值模拟 化学反应机理 动力学结构 |
| 文章编号： | 0258-1825（2007）03-0357-05 |
| 修稿时间： | 2006-01-03 |
Dynamic structure of the internal and external flow field in a single-cycle pulse detonation engine |
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| YU Lu-jun,FAN Bao-chun,DONG Gang,GUI Ming-yue.Dynamic structure of the internal and external flow field in a single-cycle pulse detonation engine[J].Acta Aerodynamica Sinica,2007,25(3):357-361. |
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| Authors: | YU Lu-jun FAN Bao-chun DONG Gang GUI Ming-yue |
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| Institution: | Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing fiangsu 210094, China |
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| Abstract: | By solving Navier-Stokes equations in conjunction with the chemistry, a numerical simulation of pulse detonation process induced by flame in the tube with CH4-O2-N2 mixture and the distribution of the internal and external axisymmetric flow field was performed,and a CH4-O2-N2 system,which included 14 species and 19 element reactions,was involved.The computational results demonstrate the diffraction of shock wave,vortex ring and complex vortex/shock interactions in the vicinity of the thruster exit.The dynamic structure is also discussed. |
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| Keywords: | PDE numerical simulation chemical reaction mechanism dynamic structure |
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