| 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。 |
| 关键词: 高速 CFD/CSD耦合 前缘钝度 |
| DOI： |
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| 基金项目:国家自然科学基金(11702285) |
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| Effects of Front Edge Bluntness on Flutter Boundary of A High Speed Airfoil |
| GUO Li,LIU Jieping,LYU Jinan,WANG Xinjiang,JI Chen,LIU Ziqiang |
| (China Academy of Aerospace Aerodynamics;China Academy of Launch Vehicle Technology) |
| 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. |
| Key words: High speed CFD/CSD simulation Front edge bluntness |