| 考虑喷流效应的机载导弹发射及气动干扰数值模拟 |
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| 引用本文： | 许晓平,祝小平,周洲,王军利.考虑喷流效应的机载导弹发射及气动干扰数值模拟[J].航空学报,2011,32(4):580-588. |
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| 作者姓名： | 许晓平 祝小平 周洲 王军利 |
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| 作者单位： | 1. 西北工业大学,无人机特种技术国防科技重点实验室,陕西西安,710072
2. 西北工业大学无人机研究所,陕西西安,710072 |
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| 摘 要： | 研究比较了机载导弹发射时是否考虑导弹尾喷流情况下导弹运动特性及机-弹气动干扰影响.通过动态结构嵌套网格技术实现了导弹运动的模拟,结合刚体六自由度运动方程求解三维非定常Euler方程得到流场信息.导弹推力由发动机燃烧室喷流计算得到;当不考虑喷流效应时,推力通过直接在导弹尾部给定非定常作用力实现.应用此方法模拟了基于类"全...
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| 关 键 词： | 无人机 计算流体力学 非定常流动 动态嵌套网格 导弹发射 喷流效应 气动干扰 |
| 收稿时间： | 2010-07-26; |
Numerical Simulation of Missile Launching and Aerodynamic Interference with Plume Effects |
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| XU Xiaoping,ZHU Xiaoping,ZHOU Zhou,WANG Junli.Numerical Simulation of Missile Launching and Aerodynamic Interference with Plume Effects[J].Acta Aeronautica et Astronautica Sinica,2011,32(4):580-588. |
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| Authors: | XU Xiaoping ZHU Xiaoping ZHOU Zhou WANG Junli |
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| Institution: | XU Xiaoping1,ZHU Xiaoping2,*,ZHOU Zhou1,WANG Junli1 1.National Key Laboratory of Science and Technology on UAV,Northwestern Polytechnical University,Xi'an 710072,China 2.Research Institute of Unmanned Aerial Vehicles,China |
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| Abstract: | This paper simulates a missile launch process by the computational fluid dynamics(CFD) method,through which the aerodynamic interference and rules of missile movement with and without consideration of the plume field are studied.A moving chimera grid approach is used coupled with an unsteady Euler flow solver,and a 6-DOF model is fully integrated into the CFD solution procedure to capture the time-dependent interference between the stationary and moving boundaries.Two thruster models are developed to accoun... |
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| Keywords: | unmanned aerial vehicle computational fluid dynamics unsteady flow moving chimera grid missile launch plume effect aerodynamic interference |
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