Camber effects on the near wake of oscillating airfoils

被引：3
|
作者：
Chang, JW
Yoon, YH
机构：
[1] Hankuk Aviat Univ, Dept Aeronaut Sci & Flight Operat, Dukyang Gu, Kyunggi 412791, South Korea
[2] Korea AF Acad, Dept Aerosp Engn, Chung Buk 363849, South Korea
来源：
JOURNAL OF AIRCRAFT | 2002年 / 39卷 / 04期
关键词：
Helicopters - Oscillations - Turbulence - Wakes - Wind tunnels;
D O I：
10.2514/2.2987
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The camber effects in the near-wake region of an oscillating asymmetric airfoil (NACA 4412) was investigated using a symmetric airfoils (NACA 0012) as reference airfoils was investigated. The near-wake characteristics of a NACA 0012 airfoil at ±α showed symmetric profiles about the X axis as a result of the symmetry of motion and airfoil shape. It was found that the streamwise velocity and turbulence intensity of the NACA 4412 airfoil in the wake region of lower surface were considerably large. The differences in streamwise velocity and turbulence intensity of two airfoils due to different lower shape and the motion direction.
引用
收藏
页码：713 / 716
页数：4
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