| 炸弹投放模型的建立与数值模拟 |
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| 引用本文： | 陈少君,刘占辰,封普文,崔志光. 炸弹投放模型的建立与数值模拟[J]. 电光与控制, 2012, 19(7): 37-40 |
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| 作者姓名： | 陈少君 刘占辰 封普文 崔志光 |
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| 作者单位： | 1. 空军工程大学航空航天工程学院,西安710038;中国人民解放军69008部队,新疆五家渠831300
2. 空军工程大学航空航天工程学院,西安,710038 |
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| 摘 要： | 数值模拟方法是研究机弹分离问题的一种高效且经济的手段,它为研究炸弹与载机的安全分离、气动干扰等问题提供了参考依据.应用计算流体动力学软件FLUENT的二次开发功能和RNG k-ε湍流模型建立了投弹流场数值模拟和弹道仿真相结合的炸弹投放仿真模型；运用动网格技术更新投放物与载机发生相对运动而导致的计算域变化；将整个流场的解...
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| 关 键 词： | 外挂物投放 数值模拟 动网格 气动干扰 湍流模型 |
| 收稿时间： | 2011-06-05 |
Establishment and Numerical Simulation of Model for Bomb Launching |
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| CHEN Shaojun , LIU Zhanchen , FENG Puwen , CUI Zhiguang. Establishment and Numerical Simulation of Model for Bomb Launching[J]. Electronics Optics & Control, 2012, 19(7): 37-40 |
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| Authors: | CHEN Shaojun LIU Zhanchen FENG Puwen CUI Zhiguang |
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| Affiliation: | 1(1.Engineering College of Aeronautics and Astronautics,Air Force Engineering University,Xi’an 710038,China; 2.No.69008 Unit of PLA,Wujiaqu 831300,China) |
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| Abstract: | Numerical simulation is an efficient and economical means for studying bomb separation from aircraftwhich may supply a reference for studying the safe separating of bombs from bomber and the aerodynamic interference.The combination model of numerical simulation and trajectory simulation of stores separated from bomber was established by the re-development technologies of the CFD software(FLUENT)and the RNG k-ε turbulence model.The changed flow field caused by the relative motion between the store and bomber was updated by the method of dynamic mesh.The process of a bomb separated from the bomber was simulatedcoupling the solution of whole field and the solution of 6-DOF equations.The picture of displacement-time and attitude angle-time were obtained under aerodynamic interference.The result showed that the aerodynamic interference has severe effect on the stores longitudinal motion rather than transverse motion. |
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| Keywords: | store separation numerical simulation dynamics mesh aerodynamic interference turbulence model |
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