The influence of mass ratio on the vortex induced motion characteristics of circular cylinder

GU Jia-yang,YANG Chen,ZHU Xin-yao,WU Jie

Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (4) : 134-140.

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PDF(3300 KB)
Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (4) : 134-140.

The influence of mass ratio on the vortex induced motion characteristics of circular cylinder

  • GU Jia-yang,YANG Chen,ZHU Xin-yao,WU Jie
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Abstract

The finite volume method is used to simulate vortex-induced motion of circular cylinder of stream-wise vibration limited and unlimited case considering different mass ratios. The vortex-induced motion system of circular cylinder is simplified into spring-mass-damping model; Reynolds-Averaged Navier-Stokes solver combined with the SST (Shear-Stress Transport) k-ω turbulence model for the Navier-Stokes equation has been used to simulate the vortex induced vibration. The initial branch and lower branch of transverse amplitude has been found both in the stream-wise vibration limited and unlimited case. For the mass ration2.0 cases, the upper branch has emerged for the two degrees of freedom system; the valve of maximum transverse amplitude is 1.05D, which is 1.81 times than that of the single degree of freedom system. The larger the mass ratio is, the smaller the difference is. The Lock-in phenomenon has been discovered both in the stream-wise vibration limited and unlimited case, but the Lock-in range is different. The mass ratios also have influence on lock-in range of the circular cylinder’s vortex-induced vibration. Finally, the trajectory of circular cylinder with different mass ratios is discussed.

Key words

circular cylinder / mass ratio / vortex induced vibration / dynamic mesh

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GU Jia-yang,YANG Chen,ZHU Xin-yao,WU Jie. The influence of mass ratio on the vortex induced motion characteristics of circular cylinder[J]. Journal of Vibration and Shock, 2016, 35(4): 134-140

References

[1]  Khalak A, Williamson C H K. Dynamics of a hydro elastic cylinder with very low mass and damping[J].Journal and Fluids and Structures, 1996, 10:455-472.
[2]  Khalark A, Williamson CHK. Fluid forces and dynamics of a hydro elastic structure with very low mass and damping structure with very low mass and damping[J].Journal and Fluids and Structures, 1997, l1:973-982.
[3]  Govardban R, Williamson C H K. Modes of vortex formation and frequency response of a freely vibrating cylinder[J].Journal of Fluid Mechanics, 2000, 420:85-130.
[4]  Jauvtis N, Williamson C H K. Vortex-induced vibration of a cylinder with two degrees of freedom[J]. Journal of Fluids and Structures, 2003, l7:l035-l042.
[5]  Jauvtis N, Williamson C H K. The effect of two degrees of freedom on vortex-induced vibration at low mass and damping[J]. Journal of Fluids Mechanics, 2004, 509:23-62.
[6]  Govardhan R N, Williamson C H K. Defining the'modified Griffin plot'in vortex-induced vibration: revealing the effect of Reynolds number using controlled damping[J]. Journal of Fluid Mechanics, 2006, 561: 147-180.
[7]  魏东泽, 白兴兰, 顾恩凯. 考虑流固耦合的立管涡激振动研究[J]. 中国造船, 2014, (3):108-116.
Wei Dongze,Bai Xinglan,Gu Enkai. Study on vortex-induced vibration of riser considering fluid-structure interaction[J]. Shipbuilding of China, 2014, (3):108-116.
[8]  黄智勇, 潘志远, 崔维成. 两向自由度低质量比圆柱体涡激振动的数值计算[J]. 船舶力学, 2007, 11(1): 1-9.
Huang Zhi-yong, Pan Zhi-yuan, Cui Wei-cheng. Numerical simulation of VIV of a circular cylinder with two degrees of freedom and low mass- ratio[J]. Journal of Ship Mechanics, 2007, 11(1): 1-9.
[9]  董婧, 宗智, 李章锐, 等. 两自由度运动圆柱绕流的离散涡方法模拟[J]. 船舶力学, 2012, 16(1): 9-20.
Dong Jing, Zong Zhi, Li Zhang-rui, Sun Lei, Chen Wei. Numerical simulation of flow around a cylinder of two degrees of freedom motion using the discrete vortex method[J]. Journal of Ship Mechanics, 2012, 16(1): 9-20.
[10] 唐友刚, 樊娟娟, 张杰等. 高雷诺数下圆柱顺流向和横向涡激振动分析[J]. 振动与冲击, 2013, 32(13):88-92.
Tang You-gang,Fan Juan-juan,Zhang Jie,Wang Li-yuan,Gui Long. In line and transverse vortex-induced vibration analysis for a circular cylinder under high Reynolds number[J]. Journal of Vibration and Shock, 2013, 32(13):88-92.
[12] 谷家扬,杨建民,肖龙飞. 两种典型立柱截面涡激运动的分析研究[J]. 船舶力学, 2014, 18(10):1184-1194.
Gu Jia-yang , Yang Jian-min, Xiao Long-fei. Study on vortex induced motion of two typical different cross-section columns[J]. Journal of Ship Mechanics, 2014, 18(10):1184-1194.
[13] 谷家扬,杨建民, 肖龙飞. 低质量比多立柱涡激特性研究[J]. 船舶力学, 2014, 18(9):1055-1071.
     Gu Jia-yang, Yang Jian-min, Xiao Long-fei. Study of vortex induced characteristics of multi-columns with low mass ratio[J]. Journal of Ship Mechanics, 2014, 18(9):1055-1071.
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