強制振動によるデルタ翼の非定常ロール特性について

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  • キョウセイ シンドウ ニ ヨル デルタヨク ノ ヒテイジョウ ロール トクセイ ニ ツイテ

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<p>This paper reviews the study of unsteady aerodynamic characteristics of delta wings at high angles of attack. Experimental Investigations were carried out for slender delta wing models, which were forced to oscillate in roll, in a wind tunnel. Compared with that of the free-to-roll oscillation, the experiment of the force-to-roll oscillation gave a better understanding about unsteady roll characteristics through large range of test parameter (roll frequency, amplitude). The results showed that unsteady rolling moment were influenced by three factors, the roll damping effect and convective time lag of the leading edge separated vortex and temporal delay of vortex breakdown. Finally, unsteady rolling moments were discussed in relation to the wing rock.</p>

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