| 地效飞行器大迎角近地面飞行分离流动数值研究 |
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| 引用本文： | 屈秋林,刘沛清,秦绪国.地效飞行器大迎角近地面飞行分离流动数值研究[J].航空学报,2007,28(1):72-77. |
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| 作者姓名： | 屈秋林 刘沛清 秦绪国 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100083 |
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| 摘 要： | 本文利用Fluent软件求解定常可压缩流动的质量加权平均N-S方程和标准 湍流模型，数值模拟地效飞行器大迎角近地面飞行的全机流场，研究地面效应引起的分离流动。研究结果给出了大迎角近地面飞行机翼上翼面分离流动随飞行高度的变化规律，分析了飞行高度降低引发流动分离的原因，阐述了流动分离对气动性能的影响规律。
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| 关 键 词： | 地效飞行器 分离流动 数值模拟 气动性能 |
| 文章编号： | 1000-6893(2007)01-0072-06 |
| 修稿时间： | 2005年9月20日 |
Numerical Research on Separated Flow Around a WIG Craft in Flight Close to Ground at High Incidence Angle |
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| QU Qiu-lin,LIU Pei-qing,QIN Xu-guo.Numerical Research on Separated Flow Around a WIG Craft in Flight Close to Ground at High Incidence Angle[J].Acta Aeronautica et Astronautica Sinica,2007,28(1):72-77. |
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| Authors: | QU Qiu-lin LIU Pei-qing QIN Xu-guo |
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| Institution: | School of Aeronautics Science and Technology, Beijing University of Aeronautics and Astronautics |
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| Abstract: | Numerical results are presented by simulating the separated flow around a WIG craft in flight close to ground at a high incidence angle. The Farve-averaged N-S equation of steady compressible flow and the standard k-epsilon turbulence model are solved by Fluent software. The effect of flight height on the separated flow around wings of WIG craft is provided. Why flow separates at lower flight height is explained. The influence of the separated flow on aerodynamics of WIG craft is analyzed in detail. |
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| Keywords: | WIG craft separated flow numerical simulation aero dynamics |
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