| 曲率对旋转爆轰传播特性的影响 |
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| 引用本文： | 张振,归明月,胡淑莹,潘振华.曲率对旋转爆轰传播特性的影响[J].北京理工大学学报,2017,37(S2):47-50. |
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| 作者姓名： | 张振 归明月 胡淑莹 潘振华 |
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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,南京理工大学 瞬态物理重点实验室, 江苏, 南京 210094;北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,南京理工大学 瞬态物理重点实验室, 江苏, 南京 210094,江苏大学 能源与动力工程学院, 江苏, 镇江 230027 |
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| 基金项目： | 国家自然科学基金资助项目（11672136）；爆炸科学与技术国家重点实验室（北京理工大学）开放基金（KFJJ17-11M） |
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| 摘 要： | 通过数值模拟研究了爆轰波在环形管道内传播时的胞格结构.数值模拟基于带化学反应的二维Euler方程，采用五阶精度的WENO格式捕捉激波，采用具有TVD性质的三阶Runge-Kutta法处理时间项，并结合并行技术，对旋转爆轰的传播进行了数值研究.结果表明，环形管道外壁为收敛壁面，由于其对流场的压缩效应，外壁面及附近的胞格较小，且较均匀.而内壁为发散壁面，其对流场起稀疏效应，内壁面及附近的胞格较大.随着内外径曲率的变化，环形管道中的胞格结构发生相应的变化，且呈周期性的消失和再生.
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| 关 键 词： | 旋转爆轰 胞格结构 曲率 |
| 收稿时间： | 2017/9/20 0:00:00 |
Influence of Curve on Rotating Detonation Propagation |
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| ZHANG Zhen,GUI Ming-yue,HU Shu-ying and PAN Zhen-hua.Influence of Curve on Rotating Detonation Propagation[J].Journal of Beijing Institute of Technology(Natural Science Edition),2017,37(S2):47-50. |
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| Authors: | ZHANG Zhen GUI Ming-yue HU Shu-ying and PAN Zhen-hua |
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| Institution: | Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China,Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China and School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 230027, China |
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| Abstract: | Based on the two-dimensional Euler equation with detailed finite-rate chemistry, detonation propagation of hydrogen/air mixture in an annular tube was studied numerically. Fifth-order weighted essentially non-oscillatory (WENO) scheme and third-order TVD Runge-Kutta were used to discretize the spatial derivatives and the time term, respectively. Moreover, parallel technology was also adopted. The numerical results show that outer wall is convergent, which makes cell sizes smaller around outer wall and more uniform due to its compression. However, inner wall is divergent, which makes cell sizes larger around outer wall due to its expansion. With variety of curve of inner and outer wall detonation cells around inner wall disappear and reproduce periodically. |
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| Keywords: | rotating detonation cellular structure curve |
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