| 翼型等速上仰绕流结构的观测 |
| |
| 引用本文： | 王家禄, 孙茂,连淇祥.翼型等速上仰绕流结构的观测[J].航空学报,1994,15(9):1062-1065. |
| |
| 作者姓名： | 王家禄 孙茂 连淇祥 |
| |
| 作者单位： | 清华大学工程力学系，北京航空航天大学流体力学研究所 |
| |
| 摘 要： | 翼型在不同转速下等速上仰时,其绕流结构不一样,转速越高,前缘涡开始形成的迎角越大。给定转速时,初始迎角大前缘涡形成得早。终止迎角对流动结构的影响与转速有关。平板翼型上仰时,前缘涡在较小迎角开始形成,涡的尺寸较大。
|
| 关 键 词： | 翼型 俯仰 流动分布 流场显示 |
OBSERVATION ON FLOW STRUCTURE AROUND A PITCHING AIRFOIL AT CONSTANT RATE |
| |
| Wang Jialu.OBSERVATION ON FLOW STRUCTURE AROUND A PITCHING AIRFOIL AT CONSTANT RATE[J].Acta Aeronautica et Astronautica Sinica,1994,15(9):1062-1065. |
| |
| Authors: | Wang Jialu |
| |
| Institution: | 1. Department of Engineering Mechanics,Tsinghua University,Beijing,100084;2. Institute of Fluid Mechanics,Beijing University of Aeronautics and Astronautics,Beijing, 100083 |
| |
| Abstract: | The flow structure around a pitching airfoil at constant rate is varied in different pitch rate regions,and the incidence at which the leading edge vortex begins to form is larger at higher pitch rate. For a given pitch rate,the leading edge vortex begins to form earlier when the initial incidence is higher.The effect of final incidence on flow structure is related to pitch rate,The leading edge vortex begins to form at lower incidence and the vortex size is bigger when a flat plane airfoil is pitched up. |
| |
| Keywords: | airfoil profiles pitch(inclination) flow distribution flow visualization |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
| 点击此处可从《航空学报》下载免费的PDF全文 |
|
