- 著者
-
大竹 智久
中江 雄亮
本橋 龍郎
- 出版者
- 一般社団法人 日本航空宇宙学会
- 雑誌
- 日本航空宇宙学会論文集 (ISSN:13446460)
- 巻号頁・発行日
- vol.55, no.644, pp.439-445, 2007 (Released:2007-10-10)
- 参考文献数
- 17
- 被引用文献数
-
29
64
Aerodynamic characteristics of NACA0012 airfoil at low Reynolds numbers (Re=1.0×104∼1.0×105) are measured systematically to clarify nonlinearity of the aerofoil characteristics. The variation of the lift curve with the angle of attack is divided into 5 sub-regions; the gradient of the lift curve much depends on the incident angle. Negative values of the gradient of lift coefficient are observed at lower angles of attack in a Reynolds numbers range. The sub-regions are summarized in a diagram of angle of attack and Reynolds numbers. The coefficients of drag and moment around 0.25 chord length have also unique characteristics.