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。
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.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1994年第9期1062-1065,共4页
Acta Aeronautica et Astronautica Sinica
关键词
翼型
俯仰
流动分布
机翼
airfoil profiles,pitch(inclination),flow distribution,flow visualization
