Conference Paper An observation of dry galloping at critical Reynolds number in normal wind

Liu, Qingkuan  ,  Ma, Wenyong  ,  Liu, Xiaobing  ,  劉, 慶寬  ,  馬, 文勇  ,  劉, 小兵

This paper aims to reproduce dry galloping in the normal wind in the wind tunnel and illustrates the relationship between galloping response and aerodynamic corresponding to it. A vertical dominated large vibration is observed in Reynolds number from 1.7×10(exp 5) to 3.0×10(exp 5). The aerodynamic force along the axis of the cylinder is not uniform, and some of them input energy to keep large vibration and others work oppositely. A key trait for energy input is that aerodynamic has right phase delay possibly induced by vibration, and these energy input process can be provided by wind pressure distribution without separation bubble.
Meeting Information: First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan
Physical characteristics: Original contains color illustrations
形態: カラー図版あり

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