| 机身边条对双三角翼飞机升力特性的影响 |
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| 引用本文： | 杨洋,尹贵鲁,明晓.机身边条对双三角翼飞机升力特性的影响[J].空气动力学学报,2006,24(4):471-476. |
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| 作者姓名： | 杨洋 尹贵鲁 明晓 |
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| 作者单位： | 1. 贵航集团飞机设计研究所,贵州,安顺,561000
2. 南京航空航天大学航空宇航学院,江苏,南京,210016 |
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| 摘 要： | 通过低速风洞测力试验和七孔探针对空间流场的测量,研究了机身边条对双三角翼飞机升力特性的影响,并分析了机身边条的增升机理。研究表明机身边条在攻角12°以后使升力有了很大提高,这是由于机身边条产生的边条涡在一定迎角下与内翼涡相互诱导、相互作用,内翼涡使边条涡向机翼内侧移动,而边条涡则将内翼涡向外推,并使内翼涡的强度增大,两者的作用提高了双三角翼内翼上的涡升力,起到增升的作用。
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| 关 键 词： | 机身边条 双三角翼 七孔探针 涡升力 |
| 文章编号： | 0258-1825（2006）04-0471-06 |
| 收稿时间： | 2005-03-27 |
| 修稿时间： | 2005-03-272005-06-25 |
The effects of body-strake on lift characteristics of the double-delta-wing aircraft |
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| YANG Yang,YING Gui-lu,MING Xiao.The effects of body-strake on lift characteristics of the double-delta-wing aircraft[J].Acta Aerodynamica Sinica,2006,24(4):471-476. |
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| Authors: | YANG Yang YING Gui-lu MING Xiao |
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| Institution: | YANG Yang~1,YING Gui-lu~1,MING Xiao~2 |
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| Abstract: | Through the low speed wind-tunnel force measurements and flow field measurements by the seven-hole probe,the effects of body-strake on lift characteristics of the double-delta-wing aircraft are studied and mechanisms of increasing lift by body-strake are analyzed.Experimental results show that the lifts of the aircraft are increased after twelve angles of attacks.Strake vortex and wing-inboard vortex are induced each other.Wing-inboard vortex make strake vortex move down.Strake vortex make wing-inboard vortex move outside and increase the wing-inboard vortex's intensity.Both of them improve the wing's vortex lift. |
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| Keywords: | body-strake double delta wing seven-hole probe vortex lift |
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