Journal of Fluids and Structures ( IF 3.4 ) Pub Date : 2021-10-07 , DOI: 10.1016/j.jfluidstructs.2021.103393 Oleg Ivanov 1 , Vasily Vedeneev 2
In this study, vortex-induced vibrations of an elastic cylinder near a finite-length plate were experimentally investigated. A rubber cylinder of diameter was spanned in a test section of a wind tunnel near a rigid plate of length . The oscillation amplitude peak for an isolated cylinder was , and the Reynolds number of the peak-amplitude regime based on cylinder diameter was in the range of 180–260. For a cylinder located sufficiently upstream relative to the plate trailing edge, it was found that oscillation amplitude ratio decreased if the gap ratio between the cylinder surface and the plate decreased. However, for the cylinder location at the same level or downstream from the plate trailing edge, there were regions of essentially larger oscillation amplitude compared to an isolated cylinder case. Maximum amplitude growth by 39% was observed.
中文翻译:
有限长度板附近弹性圆柱体的涡激振动
在这项研究中,通过实验研究了有限长度板附近弹性圆柱体的涡激振动。一个直径的橡胶圆筒 跨越在风洞的测试部分,靠近一个长度的刚性板 . 孤立圆柱体的振幅峰值为,并且基于圆柱直径的峰值振幅区域的雷诺数在 180-260 的范围内。对于位于相对于板后缘足够上游的圆柱体,发现振荡幅度比 如果差距比减少 圆柱面与板之间减小。然而,对于位于同一水平面或板后缘下游的气缸位置,与孤立的气缸情况相比,存在明显更大的振荡幅度区域。观察到最大振幅增长了 39%。