| 涡襟翼及其与前端襟翼组合的气动特性 |
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| 引用本文： | 庄逢甘,忻鼎定,王祖丰,张自强,郭文海. 涡襟翼及其与前端襟翼组合的气动特性[J]. 空气动力学学报, 1988, 0(1) |
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| 作者姓名： | 庄逢甘 忻鼎定 王祖丰 张自强 郭文海 |
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| 作者单位： | 北京航空学院(庄逢甘，忻鼎定，王祖丰，张自强)，北京航空学院(郭文海) |
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| 摘 要： | 应用测压、测力、七孔管测速和激光流态显示等方法对三种(等弦长、分段、台阶)型式涡襟冀进行了实验研究,并和基本翼(74°后掠三角翼)作比较。发现单纯改变涡襟翼的形式和参数能提高减阻效果,但不能改变小迎角下升力过小的现象。为此将机翼前端作成襟翼形式(前端襟翼)并配置后缘襟翼,研究了两种前端襟翼对涡襟翼的干扰,实验表明适当控制前端襟翼使分离涡不破裂,可使该布局同时具有减小阻力和增加升力的效果。
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| 关 键 词： | 气动力特性 涡襟翼 前端襟翼 边界层控制 |
AERODYNAMIC CHARACTERISTICS OF VORTEX FLAP AND ITS COMBINATION WITH APEX FLAP |
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| Zhuang Fenggan Xin Dingding Wang ZufengZhang Ziqiang Guo Wenhai. AERODYNAMIC CHARACTERISTICS OF VORTEX FLAP AND ITS COMBINATION WITH APEX FLAP[J]. Acta Aerodynamica Sinica, 1988, 0(1) |
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| Authors: | Zhuang Fenggan Xin Dingding Wang ZufengZhang Ziqiang Guo Wenhai |
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| Affiliation: | Beijing Institute of Aeronautics and Astronautics |
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| Abstract: | Experimental methods including aerodynamic pressure and force measurements,seven-hole probe survey as well as new technique by using hydrogen babble and LASER beam for flow visualization were conducted to study the aerodynamic characters of three kinds of vortex lap (i.e.constant chord,segmented and stepped) with 74 degree swept delta wing as a basic planform.It is found that the variation of planforms and geometrical parameters can effect only the drag reduction but little to the low lift in low angle of attack condition.In order to improve the aerodynamic characters two new devices by adding apex-and trailing-edge flaps on the basic delta wing were studied.Experimental results show that these devices are capable of increasing lift with less drag penalties,if the separated vortices shedding from,the apex-flap arc kept from break down by properly deflecting the apex-flap. |
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| Keywords: | aerodynamic characteristics vortex-flaps apex-flaps boundary layer control. |
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