| 连续旋转爆轰发动机流场三维数值模拟 |
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| 引用本文： | 邵业涛,王健平,唐新猛,石天一.连续旋转爆轰发动机流场三维数值模拟[J].航空动力学报,2010,25(8):1717-1722. |
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| 作者姓名： | 邵业涛 王健平 唐新猛 石天一 |
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| 作者单位： | 北京大学工学院力学与空天技术系, 湍流与复杂系统国家重点实验室, 北京 100871 |
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| 摘 要： | 对连续旋转爆轰发动机(continuous rotating detonation engine,简称CRDE)流场进行了三维数值模拟.数值计算获得同轴圆管腔内CRDE的多个爆轰循环过程.依据计算获得流场,分析了可燃气入射、提前燃烧、爆轰波结构等实现连续爆轰的几个关键机理问题.通过多个算例对不同来流总压时的旋转爆轰的推进性能进行了比较与分析,最后计算获得基于燃料的比冲约为2 200 s,燃料流量随总压变化呈线性增长.
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| 关 键 词： | 连续旋转爆轰发动机 脉冲爆轰发动机 流场 比冲 推进 |
| 收稿时间： | 6/30/2009 6:03:04 PM |
| 修稿时间： | 12/8/2009 7:34:04 PM |
Three-dimensional numerical simulation of continuous rotating detonation engine flowfields |
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| SHAO Ye-tao,WANG Jian-ping,TANG Xin-meng and SHI Tian-yi.Three-dimensional numerical simulation of continuous rotating detonation engine flowfields[J].Journal of Aerospace Power,2010,25(8):1717-1722. |
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| Authors: | SHAO Ye-tao WANG Jian-ping TANG Xin-meng and SHI Tian-yi |
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| Institution: | State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871, China |
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| Abstract: | A three-dimensional numerical simulation of continuous rotating detonation engine(CRDE),which is particularly designed as a coaxial cylinders combustor,was carried out to reveal its physical nature.Numerical results of CRDE's multi-time cycle propagation process agree well with previous experiment qualitatively.Some key problems about CRDE,such as fuel injection,pre-combustion and detonation structure,were also discussed.At last,a propulsion performance analysis about CRDE was made based on a serial of simulation cases.Specific impulses of five different cases about 2200s were given by the present calculation based on the fuel.The mass flux increases linearly with the increase of injection pressure. |
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| Keywords: | continuous rotating detonation PDE propulsion |
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