Numerical analysis of WIV phenomenon with two in-series cylinders: WIV suppression and energy harvesting
Numerical analysis of WIV phenomenon with two in-series cylinders: WIV suppression and energy harvesting
This numerical study aims to analyze the hydrodynamic characteristics of in-series structures with two cross-sections, as well as their power characteristics under different spacing (α) and radius (φ) ratios respectively. The results show that as the spacing ratio increases, the in-series circular/square-cylinder system displays VIV, whereas the in-series square-cylinder system can effectively suppress vibration within the interval of α = 5.3 – 5.7, 6 ≤ U
r ≤ 8 when φ = 1. It is worth noting that as the radius ratio increases, the vibration of the downstream square cylinder transits from VIV to galloping. Subsequently, the short-time Fourier transform and wavelet transform are employed to perform time-frequency analysis of different cases. In terms of energy harvesting, the in-series circular-cylinder system shows its maximum power of 48.83 mW at U
r = 9 when α = 6, φ = 1. Additionally, the power of the in-series square-cylinder system at φ = 2 is higher than that in the other two cases (φ = 1 and 3), and in these three cases, the power at α = 6 is much greater than that of the case α = 8 and 4 regardless of the radius ratio. As to conversion efficiency, the case α = 6 and φ = 2 demonstrates the optimal energy harvesting performance. Thus, flexible control of the radius ratio and spacing ratio in a special range can not only suppress vibration but also enhance energy harvesting efficiency.
Computational modeling, Cylinders in tandem, Energy harvesting, Vortex-induced vibration, Wake-induced galloping
Tang, Rongjiang
d0c82729-c5c7-42a3-b8fa-7b0c122f82ce
Gu, Yubin
93ce02ad-284f-4f4b-aa56-e0966549da72
Mi, Xiaowen
68ca5e27-bda1-4020-bc44-3be331e2a96d
Yurchenko, Daniil
51a2896b-281e-4977-bb72-5f96e891fbf8
Xu, Feng
f0b3dd0b-beba-4e7f-88d2-eabdf5563d0b
Xu, Wanhai
f407fa97-2475-4aa8-b273-613a38a4f8ed
Liu, Xiaowei
f878f4d0-e9b5-4b07-956b-2e744b373ea3
Wang, Junlei
d55dc6d0-734d-46e1-bedd-5ecc18df8702
15 October 2022
Tang, Rongjiang
d0c82729-c5c7-42a3-b8fa-7b0c122f82ce
Gu, Yubin
93ce02ad-284f-4f4b-aa56-e0966549da72
Mi, Xiaowen
68ca5e27-bda1-4020-bc44-3be331e2a96d
Yurchenko, Daniil
51a2896b-281e-4977-bb72-5f96e891fbf8
Xu, Feng
f0b3dd0b-beba-4e7f-88d2-eabdf5563d0b
Xu, Wanhai
f407fa97-2475-4aa8-b273-613a38a4f8ed
Liu, Xiaowei
f878f4d0-e9b5-4b07-956b-2e744b373ea3
Wang, Junlei
d55dc6d0-734d-46e1-bedd-5ecc18df8702
Tang, Rongjiang, Gu, Yubin, Mi, Xiaowen, Yurchenko, Daniil, Xu, Feng, Xu, Wanhai, Liu, Xiaowei and Wang, Junlei
(2022)
Numerical analysis of WIV phenomenon with two in-series cylinders: WIV suppression and energy harvesting.
Ocean Engineering, 262, [112154].
(doi:10.1016/j.oceaneng.2022.112154).
Abstract
This numerical study aims to analyze the hydrodynamic characteristics of in-series structures with two cross-sections, as well as their power characteristics under different spacing (α) and radius (φ) ratios respectively. The results show that as the spacing ratio increases, the in-series circular/square-cylinder system displays VIV, whereas the in-series square-cylinder system can effectively suppress vibration within the interval of α = 5.3 – 5.7, 6 ≤ U
r ≤ 8 when φ = 1. It is worth noting that as the radius ratio increases, the vibration of the downstream square cylinder transits from VIV to galloping. Subsequently, the short-time Fourier transform and wavelet transform are employed to perform time-frequency analysis of different cases. In terms of energy harvesting, the in-series circular-cylinder system shows its maximum power of 48.83 mW at U
r = 9 when α = 6, φ = 1. Additionally, the power of the in-series square-cylinder system at φ = 2 is higher than that in the other two cases (φ = 1 and 3), and in these three cases, the power at α = 6 is much greater than that of the case α = 8 and 4 regardless of the radius ratio. As to conversion efficiency, the case α = 6 and φ = 2 demonstrates the optimal energy harvesting performance. Thus, flexible control of the radius ratio and spacing ratio in a special range can not only suppress vibration but also enhance energy harvesting efficiency.
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Numerical analysis of WIV phenomenon with two cylinders in series
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Accepted/In Press date: 27 July 2022
e-pub ahead of print date: 17 August 2022
Published date: 15 October 2022
Additional Information:
Funding Information:
This project was supported by National Natural Science Foundation of China (Grant No. 52165010 , Liuzhou Science and Technology Plan Project : Research and Application of Key Technologies for Active and Passive Composite Control of Low-Frequency Noise of Commercial Vehicles ( 2020PAA0604 ), Liuzhou Science and Technology Plan Project : Development of key technologies for improving the fuel economy of commercial vehicles ( 2021AAA0108 ), Natural Science Foundation of Excellent Youth of Henan Province : 222300420076 , National Natural Science Foundation of China (Grant No.: 51977196 ), Natural Science Foundation of Chongqing , China( cstc2020jcyj-bshX0045 ).
Publisher Copyright:
© 2022 Elsevier Ltd
Keywords:
Computational modeling, Cylinders in tandem, Energy harvesting, Vortex-induced vibration, Wake-induced galloping
Identifiers
Local EPrints ID: 472994
URI: http://eprints.soton.ac.uk/id/eprint/472994
ISSN: 0029-8018
PURE UUID: 61da020a-5583-490e-a5ce-c8bc83d4594a
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Date deposited: 06 Jan 2023 17:55
Last modified: 17 Mar 2024 07:36
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Contributors
Author:
Rongjiang Tang
Author:
Yubin Gu
Author:
Xiaowen Mi
Author:
Daniil Yurchenko
Author:
Feng Xu
Author:
Wanhai Xu
Author:
Xiaowei Liu
Author:
Junlei Wang
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