| 等速上仰翼型尾部流动观察及动态失速机理探讨 |
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| 引用本文： | 孙茂,王家禄,连淇祥.等速上仰翼型尾部流动观察及动态失速机理探讨[J].力学学报,1993,25(5):628-631. |
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| 作者姓名： | 孙茂 王家禄 连淇祥 |
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| 作者单位： | 北京航空航天大学流体所，100083 |
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| 摘 要： | 在尾缘处置氢气泡铂丝,观察了上仰翼型自尾缘流入尾迹的涡层。基于尾涡层及(以往)上翼面分离涡的观察,用涡动力学理论,探讨了动态失速的机理,并解释了新的失速现象。
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| 关 键 词： | 上仰翼型 尾涡层 动态失速 |
THE TRAILING-EDGE VORTEX STRUCTURE OF A CONSTANT-RATE AIRFOIL AND MECHANISM OF DYNAMIC STALL |
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| Sun Mao Wang Jialu Lian Qixiang.THE TRAILING-EDGE VORTEX STRUCTURE OF A CONSTANT-RATE AIRFOIL AND MECHANISM OF DYNAMIC STALL[J].chinese journal of theoretical and applied mechanics,1993,25(5):628-631. |
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| Authors: | Sun Mao Wang Jialu Lian Qixiang |
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| Abstract: | The vortex structure shed from the trailing-dege of a constant-rate pitching airfoil was visualized using hydrogen bubble technique. Its time evolution, and the effects of pitching rate were studied. Combining the trailing-dege vortex structure with the (previously obtained) airfoil upper-surface separated vortex structure, a complete flow structure was obtained. The mechanism of dynamic stall was studied based on the flow structure and vorticity dynamics theory, and insights were provided. |
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| Keywords: | pitching airfoil trailing-edge shed vortex dynamic stall |
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