| 陶洋*,范召林,赵忠良.80°/65°双三角翼摇滚特性风洞实验研究[J].实验力学,2009,24(2):171~175 |
| 80°/65°双三角翼摇滚特性风洞实验研究 |
| Wind Tunnel Investigation on Dynamic behavior of 80°/65° Double Delta Wing in Rolling at High Incidence |
| 投稿时间：2009-01-08 修订日期：2009-03-23 |
| DOI： |
| 中文关键词: 大迎角 双三角翼 准极限环 自激摇滚 |
| 英文关键词:high incidence double delta wing quasi-limit-cycle self-content rolling |
| 基金项目:十一五气动预先研究项目（513130301） |
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| 中文摘要: |
| 介绍了在FL-23高速风洞中研究自由摇滚的装置、试验方法、数据采集等试验技术。在马赫数从0.3到0.6范围内，对应的雷诺数从0.56×10 7/m至1.126×10 7/m范围内，开展了双三角翼大迎角下的摇滚特性的研究，包括迎角、马赫数、初始释放等参数的影响，给出了典型的结果。结果表明，随着模型迎角的增加，双三角翼呈现不同的滚转运动形态，包括静态稳定、准极限环摇滚、双周期震荡等；试验中马赫数提高对翼摇滚起抑制作用；摇滚运动的最终平衡状态和摇滚幅值与初始状态无关。 |
| 英文摘要: |
| Free rolling test technique including apparatus, methods as well as data acquisition in a high-speed wind tunnel is presented in this paper. The test was carried out in a FL-23 wind tunnel with Mach number ranging from 0.3 to 0.6 and Reynolds number ranging from 0.56×10 7/m to 1.126×10 7/m. An investigation on the dynamic behavior of a double delta wing at high incidence was conducted. Dynamic motions were obtained on a double delta wing that was free to rotate on its longitudinal axis at different attack angle. Different dynamic rolling motions including steady stability, quasi-limit-cycle rock motion, and double period's oscillations were observed. Results show that the rocking of double delta wing is restrained as the Mach number increasing, the wing rocking motion is also influenced by attack angle, initial state has no influence on ultimate balance state and rolling amplitude of double delta wing. |
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