| 40°后掠角三角翼不同前缘形状对其气动特性影响的实验研究 |
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| 引用本文： | 白涛,王晋军.40°后掠角三角翼不同前缘形状对其气动特性影响的实验研究[J].实验流体力学,2005,19(2):7-10. |
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| 作者姓名： | 白涛 王晋军 |
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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;北京航空航天大学流体力学研究所,北京,100083 |
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| 基金项目： | 武器装备预研基金(编号51413010304HK0126)，国家杰出青年科学基金(编号10425207). |
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| 摘 要： | 通过风洞测力实验,研究了40°后掠角不同前缘形状对三角翼气动特性的影响。实验结果表明:前缘背风面倒角机翼的升阻比最大,而前缘迎风面倒角机翼的升阻比最小。相同前缘形状倒角机翼,其倒角值的变化对三角翼升力特性的影响不大。小迎角下,前缘迎风面倒角机翼的升力系数略高于其余不同前缘形状的三角翼。
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| 关 键 词： | 三角翼 前缘剖面形状 升力系数 气动特性 升阻比 |
| 文章编号： | 1672-9897(2005)02-0007-05 |
| 修稿时间： | 2004年7月19日 |
Experimental study of different leading-edge profiles of a 40 degree-sweep delta wing |
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| BAI Tao,WANG Jin-jun.Experimental study of different leading-edge profiles of a 40 degree-sweep delta wing[J].Experiments and Measur in Fluid Mechanics,2005,19(2):7-10. |
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| Authors: | BAI Tao WANG Jin-jun |
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| Abstract: | In this paper, the influences on aerodynamic performance of different leading-edge cross-section profiles of a 40 degree-sweep delta wing are investigated by force measurement in wind tunnel. It is shown that the lift of the delta wing with leeward beveled is the highest, and the lift of the delta wing with windward beveled is the lowest. It nearly has no influence for the wing beveled with different angles. The lift coefficient of the delta wing with leading-edge windward beveling at low angles of attack is a little higher than other delta wings. |
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| Keywords: | leading-edge profile delta wing lift coefficient aerodynamic characteristic lift to drag ratio |
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