Abstract This study addresses vortex-induced vibration analysis by an elastic rigid cylinder oscillating free in cross flow direction subject to low mass damping ratio. Two-dimensional Reynold-Averaged Navier-Stokes equations (RAN) for this purpose are simulated. Analysis is carried out for range of reduced velocity = 2–16 which corresponds to Reynolds number 1700–14,000. The mass-ratio is 2.4 and mass-damping ratio 0.0013. Previously, similar studies have been performed numerically but are limited to achieve maximum cylinder response. In the current study, comparatively higher value of maximum amplitude of cylinder is computed. However delay in transition from ‘upper branch’ to ‘lower branch’ is noticed. In addition to maximum amplitude, other hydrodynamic coefficients are also discussed. The results extracted from current simulations are compared with previous experimental studies in literature.

中文翻译：

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使用 RANS 模型对具有低质量阻尼比的弹性安装圆柱体进行 VIV 研究

摘要 本研究通过在低质量阻尼比下在横向流动方向上自由振荡的弹性刚性圆柱体来解决涡激振动分析。为此目的，模拟二维雷诺平均纳维-斯托克斯方程 (RAN)。对降低速度范围 = 2-16 进行分析，这对应于雷诺数 1700-14,000。质量比为 2.4，质量阻尼比为 0.0013。以前，已经进行了类似的数值研究，但仅限于实现最大的气缸响应。在目前的研究中，计算出的气缸最大振幅值相对较高。然而，注意到从“上分支”到“下分支”的转换延迟。除了最大幅度之外，还讨论了其他水动力系数。