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首页> 外文期刊>Journal of Fluids Engineering: Transactions of the ASME >Numerical Simulation of Two-Degree-of-Freedom Vortex-Induced Vibration of a Circular Cylinder Between Two Lateral Plane Walls in Steady Currents
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Numerical Simulation of Two-Degree-of-Freedom Vortex-Induced Vibration of a Circular Cylinder Between Two Lateral Plane Walls in Steady Currents

机译：稳态电流中两个水平平面壁之间圆柱的两自由度涡旋振动的数值模拟

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摘要

Vortex-induced vibration (VIV) of a circular cylinder at a low mass ratio of 1.5 between two lateral walls is investigated numerically. The focus of the study is to examine the effects of the two lateral walls on the VIV. Numerical simulations are carried out for w/D = 4, 6, 10, and 20 with D and w being the cylinder diameter and the distance between the two walls, respectively. It is found that the effects of the two walls on the VIV are obvious as w/D ≤ 6 and negligibly small as w/D = 10. The VIV amplitudes in both x- and y-directions increase with the increasing w/D in the lock-in regime.
机译：数值研究了两个侧壁之间质量比为1.5的圆柱体的涡激振动（VIV）。研究的重点是检查两个侧壁对VIV的影响。对w / D = 4、6、10和20进行了数值模拟，其中D和w分别是圆柱直径和两个壁之间的距离。结果发现，当w / D≤6时，两壁对VIV的影响很明显，而当w / D = 10时，两壁的影响很小。在x / y方向上，VIV幅度随w / D的增加而增加。锁定制度。

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