Fluid-structure coupled vibration mechanism of wave conical cylinder

PDF(3535 KB)

Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (3) : 18-26.

ZOU Lin, QIN Ao, YANG Yaozong, LIE Yujun, XU Jinli

Author information +

History +

Abstract

In order to enhance and control the energy collection efficiency of the bladeless wind energy capture structure, this paper introduces the slope parameter of the surface structure into the wave-shaped cylinder, and develops a new type of wave-cone-shaped cylinder. Numerical and experimental research on the response characteristics of wave-cone cylindrical vortex-induced vibration with different wavelength ratio, wave amplitude ratio and slope parameters under Reynolds number Re=3900. The study found that at different reduced flow rates, the cone cylinders with slope k=0.05 and the wavy cone cylinder with wavelength ratio λ/Dm =1.75, wave amplitude ratio α/Dm =0.10, slope k=0.05 have the maximum amplitude ratio increased, compared with the straight cylinder, the maximum amplitude increases by 26.4% and 12.6% respectively, and their frequency lock range can be expanded. When the reduced flow velocity is in the locked frequency range, “2S” and “2P” vortex detachment modes are observed in the wake of the wave-conical cylindrical flow, and the “2P” vortex detachment mode tends to change to “2C” mode as it develops downstream. This research can provide theoretical support for the vortex-induced vibration of bladeless wind energy capture structures and the improvement of power generation efficiency.

Key words

wavy cone cylinder / fluid-structure coupling / vortex-induced vibration / increase vibration / numerical simulation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZOU Lin, QIN Ao, YANG Yaozong, LIE Yujun, XU Jinli. Fluid-structure coupled vibration mechanism of wave conical cylinder[J]. Journal of Vibration and Shock, 2022, 41(3): 18-26

References

[1] 张建,郑史雄,唐煜,等. 基于节段模型试验的悬索桥涡振性能优化研究[J]. 实验流体力学,2015,29(02):48-54.
ZHANG Jian, ZHENG Shixiong, TANG Yu,et al. Research on optimizing vortex-induced vibration performance for suspension bridge base on section model test[J]. Journal of Experiments in Fluid Mechanics,2015,29(02):48-54.
[2] 遆子龙,李永乐,徐昕宇. 大跨钢桁拱桥局部杆件动力特性及涡振发生风速的影响因素研究[J]. 振动与冲击,2018,37(06):174-181.
TI Zilong, LI Yongle, XU Xinyu. Influencing factors of dynamic characteristics and onset wind speed of the vortex-induced vibration of local members in a long-span steel truss arch bridge[J]. Journal of Vibration and Shock,2018,37(06):174-181.
[3] 周国成,柳贡民,马俊,等. 圆柱涡激振动数值模拟研究[J].噪声与振动控制,2010, 30(5):51-55,59.
ZHOU Guocheng, LIU Gongmin, Ma Jun,et al. Numerical simulation of vortex induced vibration of a circular cylinder[J]. Noise and Vibration Control,2010, 30(5):51-55,59.
[4] BahmaniMH, AkbariMH. Effects of mass and damping ratioson VIV of a circular cylinder[J]. OceanEngineering,2010, 37(5):511-519.
[5] Williamson CHK, Roshko A. Vortexformationin the wake of an oscillating cylinder[J]. Journal of Fluids&Structures,1988,2(4):355-381.
[6] 邹琳,王华奥,汪秒,等. 串列双圆柱涡激振动响应的数值模拟[J]. 水动力学研究与进展(A辑),2018, 33(01):58-65.
ZOU Lin, WANG Huaao, WANG Miao,et al. Numerical simulation on vortex-induced vibration response of two cylinders in tandem arrangements[J]. Chinese Journal of Hydrodynamics,2018, 33(01):58-65.
[7] 康庄,张橙. 雷诺数对圆柱体涡激振动特性影响研究[J]. 华中科技大学学报(自然科学版),2017, 45(11):74-79.
KANG Zhuag, ZHANG Cheng. Impact of Reynolds number on vortex-induced vibration performance of cylinder[J]. Journal of Huazhong University of Science and Technology(Natural Science Edition),2017, 45(11):74-79.
[8] 陈威霖,及春宁,许栋. 小间距比下串列双圆柱涡激振动数值模拟研究:振动响应和流体力[J]. 振动与冲击,2018,37(23):261-269.
CHEN Weilin, JI Chunning, XU Dong. Numerical simulations for VIVs of two tandem cylinders with small spacing ratios: vibration responses and hydrodynamic forces[J]. Journal of Vibration and Shock,2018,37(23):261-269.
[9] Zhang K, Katsuchi H,Zhou D,et al. Numerical simulation of vortex induced vibrations of a flexibly mounted wavy cylinder at subcritical Reynoldsnumber[J]. OceanEngineering,2017, 133:170-181.
[10] http://www.cnbeta.com/articles/394303.htm.
[11] 敬海泉,魏淼淼,彭浩轩,等. 一种基于涡激振动的无叶片风力发电机[P]. 中国：211524992U，2020.09.18.
JING Haiquan, WEI Miaomiao, PENG Haoxuan,et al. Bladeless wind power generator based on vortex-induced vibration[P]. China:211524992U，2020.09.18.
[12] 燕翔,郑正,练继建,等. 一种模块化流致振动发电装置[P]. 中国：210724466U，2020.06.09.
YAN Xiang, ZHENG Zheng, LIAN Jijian,et al. Modular flow-induced vibration power generation device[P]. China:210724466U，2020.06.09.
[13] Lam K, Lin Y F. Effects of wave length and amplitude of a wavy cylinder incross-flow at low Reynoldsnumbers[J]. Journal of Fluid Mechanics, 2009, 620(620):195-220.
[14] 汪秒. 串列双波浪型圆柱涡激振动数值研究[D]. 武汉：武汉理工大学,2016.
WANG Miao. Numerical investigation on vortex-induced vibrations of the tandem wavy cylinders[D]. Wuhan:Wuhan University of Technology,2016.