| 动态三角翼的非定常气动特性和压力分布相关研究 |
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| 引用本文： | 白涛,吕志咏,杨晓峰.动态三角翼的非定常气动特性和压力分布相关研究[J].实验流体力学,2004,18(2):38-42. |
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| 作者姓名： | 白涛 吕志咏 杨晓峰 |
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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： | 文章介绍了不同后掠角三角翼在进行俯仰振荡时的动态压力特性,说明这种动态压力特性同三角翼的法向力的变化是密切相关的,试验研究揭示了流态、压力和气动力之间的密切关系。同时试验研究显示三角翼上翼面压力的动态变化曲线呈现出双峰形态;不同后掠角三角翼在动态试验过程中压力、法向力都具有相似特性。
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| 关 键 词： | 动态特性 三角翼 压力 旋涡 |
| 文章编号： | 1007-3124(2004)02-0038-05 |
| 修稿时间： | 2003年7月28日 |
Correlation investigation of unsteady aerodynamics of dynamic delta wings and pressure distribution |
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| BAI Tao,L Zhi-yong,YANG Xiao-feng.Correlation investigation of unsteady aerodynamics of dynamic delta wings and pressure distribution[J].Experiments and Measur in Fluid Mechanics,2004,18(2):38-42. |
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| Authors: | BAI Tao L Zhi-yong YANG Xiao-feng |
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| Abstract: | In this paper, the dynamic pressure characteristics of different swept delta wings at pitching oscillation are presented. The test was performed in wind tunnel of BUAA. The results show that the dynamic pressure characteristics are closely correlation with the change of delta wing's normal force. The experiment investigation have opened out that fluid state, pressure and aerodynamic force have been very affinity. Moreover, the experiment investigation indicates that graph of dynamic pressure distribution of upper wing of delta wing are presented with two humps, and that pressure and normal force of different swept delta wings have analogical characteristics. |
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| Keywords: | dynamic characteristics delta wing pressure vortex |
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