日本航空宇宙学会誌
Online ISSN : 2424-1369
Print ISSN : 0021-4663
ISSN-L : 0021-4663
特集 大迎角剥離流
後退角の大きくないデルタ翼のロール自励振動
中村 佳朗松野 隆
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ジャーナル フリー

2000 年 48 巻 560 号 p. 490-494

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This is a review paper of unsteady aerodynamics of a 45°delta wing in rolling motion, based on experimental data collected from the wind tunnel testing at Nagoya University. This wing shows self-induced oscillations at high angles of attack, which seem to be different from those of conventional slender wing rock. The flow physics of this oscillation can be made clear from results of free-to-roll testing for various values of pitch angle. Furthermore, the static rolling moment shows highly nonlinear characteristics with regard to roll angle, which is associated with asymmetric behavior of a pair of leading-edge vortices. Due to this nonlinear change of rolling motion, there occurs a hysteresis of rolling moment.

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© 2000 一般社団法人 日本航空宇宙学会
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