| 前缘钝度对高速翼型颤振边界的影响 |
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| 作者姓名： | 郭力 刘杰平 吕计男 王昕江 季辰 刘子强 |
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| 作者单位： | 中国航天空气动力技术研究院,中国运载火箭技术研究院,中国航天空气动力技术研究院,中国航天空气动力技术研究院,中国航天空气动力技术研究院,中国航天空气动力技术研究院 |
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| 基金项目： | 国家自然科学基金(11702285) |
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| 摘 要： | 高速飞行器控制面前缘不同的钝度对其气动特性具有影响,同时也影响了其气动弹性特性。采用了CFD/CSD耦合计算方法,研究3种不同钝度的前缘对2维翼型在Mach数为5时的颤振边界的影响。计算结果显示,随着翼型的钝度增加,颤振边界不断提高,即前缘钝度增加了气动弹性稳定性。
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| 关 键 词： | 高速 CFD/CSD耦合 前缘钝度 |
Effects of Front Edge Bluntness on Flutter Boundary of A High Speed Airfoil |
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| Authors: | GUO Li LIU Jieping LYU Jinan WANG Xinjiang JI Chen and LIU Ziqiang |
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| Institution: | China Academy of Aerospace Aerodynamics,China Academy of Launch Vehicle Technology,China Academy of Aerospace Aerodynamics,China Academy of Aerospace Aerodynamics,China Academy of Aerospace Aerodynamics and China Academy of Aerospace Aerodynamics |
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| Abstract: | Bluntness of front edge influences the aerodynamic performance of an airfoil, whereby its aeroelastic properties are also changed. Airfoils with 3 different bluntness are studied at Mach 5 to give relations between bluntness of airfoil and its aeroelastic performance. CFD/CSD method are used to explore the aeroelastic boundaries of the 3 different airfoils. The extracted boundaries show that the boundary increases as the bluntness increases. |
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| Keywords: | High speed CFD/CSD simulation Front edge bluntness |
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