| 外挂物投放 发射过程数值仿真中的非均匀流场计算 |
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| 引用本文： | 周奋为,张启南.外挂物投放 发射过程数值仿真中的非均匀流场计算[J].空气动力学学报,1992,10(4):506-512. |
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| 作者姓名： | 周奋为 张启南 |
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| 作者单位： | 沈阳飞机研究所，北京航空航天大学 辽宁沈阳 110035，北京 100083 |
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| 摘 要： | 本文介绍了用面元法计算外挂物投放/发射过程中的非均匀流场问题。理论分析表明三角形奇点分布形态在非均匀流场计算中具有其独特的优越性。本文还阐述了伍德沃德程序中机翼线性变化源分布中法向扰动速度公式的错误。数值结果表明,理论计算与实验值吻合较好。
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| 关 键 词： | 飞机外挂物 非均匀流动 面元法 |
The Calculation for Nonuniform Flow Field in the Process of Determing the Trajectory of Ejection or Release External Stores |
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| Zhou Fenwei.The Calculation for Nonuniform Flow Field in the Process of Determing the Trajectory of Ejection or Release External Stores[J].Acta Aerodynamica Sinica,1992,10(4):506-512. |
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| Authors: | Zhou Fenwei |
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| Institution: | Zhou Fenwei (Shenyang Aircraft Research Institute)Zhang Qinan (Beijing University of Aeronautics and Astranautics) |
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| Abstract: | This paper has presented the problem which deals with the prediction of nonuniform flow field in the process of determing the trajectory of ejection or release external stores using panel method. Theoritical analysis has shown that triangular singularity distribution has special advantages over the other ones(vortex ring or constant distribution) in the prediction of nonuniform flow field. It has been also pointed out in this paper that the wing source velocity formula has error in woodward's USSAERO code. The estimated flow field data agree well with the measured ones. |
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| Keywords: | external stores nonuniform flow field panel method |
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