| 大迎角下鸭翼涡与边条涡的干扰特性 |
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| 引用本文： | 马宝峰,刘沛清,邓学蓥.大迎角下鸭翼涡与边条涡的干扰特性[J].航空学报,2002,23(6):560-563. |
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| 作者姓名： | 马宝峰 刘沛清 邓学蓥 |
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| 作者单位： | 北京航空航天大学,流体力学研究所,北京,100083 |
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| 摘 要： | 在风洞测力、水洞染色线和激光片光实验的基础上 ,对翼身组合体鸭翼边条翼布局大迎角涡系干扰机理进行了分析和探讨 ,揭示了该布局增升的机理。鸭翼涡位于机翼内侧 ,其与边条涡的相互诱导致使边条涡向外翼偏折 ,既改善了外翼的流态 ,又使机翼前缘涡量卷入边条涡 ,增强了边条涡的强度 ,从而延迟其破裂。两方面的共同作用 ,提高了主翼的涡升力 ,起到增升作用。
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| 关 键 词： | 鸭式布局 边条 大迎角 涡干扰 流动显示 |
| 文章编号： | 1000-6893(2002)-06-0560-04 |
| 修稿时间： | 2001年9月19日 |
CHARACTERISTICS OF CANARD VORTEX INTERACTION WITH STRAKE VORTEX AT HIGH INCIDENCE |
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| MA Bao feng,LIU Pei qing,DENG Xue ying.CHARACTERISTICS OF CANARD VORTEX INTERACTION WITH STRAKE VORTEX AT HIGH INCIDENCE[J].Acta Aeronautica et Astronautica Sinica,2002,23(6):560-563. |
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| Authors: | MA Bao feng LIU Pei qing DENG Xue ying |
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| Institution: | Fluid Mechanics Institute, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | On the basis of wind tunnel force measurement, water tunnel flow visualization for the streak and laser sheet,the vortex system interaction mechanism of the canard strake wing configuration with a wing body combination at high incidence was analyzed and lift gain's cause of the configuration was revealed. Induction between the canard vortex, located at the wing inboard, and the strake vortex with each other resulted in deflection of the strake vortex to the wing outboard. The deflection not only improved the wing outboard flow condition but also made the wing leading edge vorticity twist into strake vortex, which increased the strake vortex's intensity and delayed the strake vortex's burst. Both above make the primary wing's vortex lift increase. |
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| Keywords: | canard configuration strake high incidence vortex interaction flow visualization |
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