| 大迎角细长旋成体绕流结构演变过程实验研究 |
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| 引用本文： | 刘沛清,邵延峰,邓学蓥,马宇.大迎角细长旋成体绕流结构演变过程实验研究[J].航空学报,2003,24(6):503-506. |
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| 作者姓名： | 刘沛清 邵延峰 邓学蓥 马宇 |
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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： | 通过烟流显示和测压实验, 系统地观察和分析了尖拱头细长旋成体绕流结构随迎角的演变过程。实验发现在不同迎角下, 不仅细长旋成体绕流结构形态不同, 而且不同流态结构的演变过程所含迎角范围较小,几乎在几度迎角内就可完成。
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| 关 键 词： | 细长旋成体 非对称涡 大迎角 流动显示 非定常性 |
| 文章编号： | 1000-6893(2003)06-0503-04 |
| 修稿时间： | 2002年11月13 |
Experimental Study of the Evolutionary Process of the Flowfield Around Slender Body at High Angle of Attack |
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| LIU Pei-qing,SHAO Yan-feng,DENG Xue-ying,MA Yu.Experimental Study of the Evolutionary Process of the Flowfield Around Slender Body at High Angle of Attack[J].Acta Aeronautica et Astronautica Sinica,2003,24(6):503-506. |
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| Authors: | LIU Pei-qing SHAO Yan-feng DENG Xue-ying MA Yu |
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| Institution: | Fluid Mechanics Institute; Beijing University of Aeronautics and Astronautics; Beijng100083; China |
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| Abstract: | Based on v isualizing and tr acking t he flow by smoke stream and surface pr essure measurement, the entire process o f t he flow behavior around a slender og ive cylinder at angles of at tack from 0°to 90°is observ ed and analy zed systematically. It is found that in the exper iment, at various angles of attack, the structur e of the flowfieldaround the slender body is differ ent and the r ange of the angles of attack invo lved by the evolvement process is small.The evolvement pro cess can mainly be finished in a small rang e of angles of attack. |
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| Keywords: | slender body asymmetric vortices high angle of attack flow visualization unsteady character |
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