| 航弹尾流场数值模拟及柔性开舱可靠性分析 |
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| 引用本文： | 白春华,李建平.航弹尾流场数值模拟及柔性开舱可靠性分析[J].北京理工大学学报,2005,25(7):585-589. |
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| 作者姓名： | 白春华 李建平 |
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| 作者单位： | 北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081 |
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| 摘 要： | 为了研究航弹柔性开舱可靠性,通过分析动态条件下弹簧引导伞的运动过程,获知弹尾部流场的复杂性;采用数值模拟计算,求得了弹底尾部压力场、速度场及涡流区的分布规律;依据流体动力学原理,建立了弹簧引导伞计算模型,由能量守恒原理,得出了柔性开舱可靠性的判定依据.
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| 关 键 词： | 弹簧引导伞 数值模拟 计算流体动力学 |
| 文章编号： | 1001-0645(2005)07-0585-05 |
| 收稿时间： | 09 8 2004 12:00AM |
| 修稿时间： | 2004年9月8日 |
Bomb Rear Flow Field Numerical Simulation and Flexible Cabin Opening Reliability Analysis |
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| BAI Chun-hua and LI Jian-ping.Bomb Rear Flow Field Numerical Simulation and Flexible Cabin Opening Reliability Analysis[J].Journal of Beijing Institute of Technology(Natural Science Edition),2005,25(7):585-589. |
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| Authors: | BAI Chun-hua and LI Jian-ping |
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| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | By analyzing the motion of the spring guided umbrella in dynamic conditions it is found that the flow field in the rear of bomb is very complicated. The pressure field, velocity field and vortex in the rear of bomb are obtained with the help of numerical modeling and simulation.Based on the principle of hydrodynamics and conservation of energy, a simulation model of the spring guided umbrella is established and the reliability criterion of flexible cabin opening is obtained. |
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| Keywords: | the spring guided umbrella numerical simulation computational fluid dynamics |
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