Vortex-induced vibrations of an elastic cylinder near a finite-length plateстатья
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Дата последнего поиска статьи во внешних источниках: 10 ноября 2021 г.
Аннотация:In this study, vortex-induced vibrations of an elastic cylinder near a finite-length plate were experimentally investigated. A rubber cylinder of diameter D was spanned in a test section of a wind tunnel near a rigid plate of length ~6D. The oscillation amplitude peak for an isolated cylinder was 0.3D, 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 A/D decreased if the gap ratio G/D 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.