| Hydrodynamic responses and layout optimization of wave energy converter arrays consisting of five-degree-of-freedom truncated cylinders in front of a vertical wall | |
Kang YS(康元顺)1,2 ; Ceng XH(曾晓辉)1,2; Cui ZH(崔哲华)1,2,3; Chen JH(陈嘉昊)1,2
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| Corresponding Author | Zeng, Xiaohui(zxh@imech.ac.cn) |
| Source Publication | PHYSICS OF FLUIDS
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| 2024 | |
| Volume | 36Issue:1Pages:39 |
| ISSN | 1070-6631 |
| Abstract | The hydrodynamic responses and layout optimization of a group of cylindrical wave energy conversion devices (WEC) in front of a fully reflecting vertical wall are investigated. Each truncated floating cylinder can oscillate with five degrees of freedom, i.e., surge, sway, heave, roll, and pitch. Based on the linear water wave theory, an analytical solution is developed for the hydrodynamic problem. The results of specific parameter studies suggest that the wall reflection effect significantly improves the energy extraction performance of the WEC array with the appropriate parameter conditions. A multi-level optimization method based on a genetic algorithm is developed. This paper investigates the optimal layout of the six WEC arrays, composed of 2-7 buoys, respectively. Additionally, the impact of other degrees of freedom (DOFs), besides the heave mode, on the hydrodynamic performance of the array is investigated. For beta <= pi/12, there is no need to consider the impact of other DOFs on the energy extraction in heave mode. The dimensionless amplitudes of other DOFs gradually decrease as the equivalent constraint stiffness increases. For k(0)a > 1.0, the heave amplitude and energy capture performance of the WEC array are significantly smaller. However, the amplitudes of other DOFs still have considerable magnitudes for k(0)a > 1.0. Therefore, for the sea area with high-frequency incident waves (k(0)a > 1.0), setting up a power takeoff system on other DOFs of each buoy to extract energy is a feasible solution to improve the performance of the WEC array. |
| DOI | 10.1063/5.0184849 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001179189600005 |
| WOS Keyword | WATER-WAVES ; DIFFRACTION ; RADIATION ; BREAKWATER ; NUMBER |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China10.13039/501100001809[12372051] ; National Natural Science Foundation of China10.13039/501100001809[11672306] ; National Natural Science Foundation of China[2022YFB4201500] ; National Key Research and Development Program of China |
| Funding Organization | National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China ; National Key Research and Development Program of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Zeng, Xiaohui |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94846 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Inst Mech, Chinese Acad Sci, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Kang YS,Ceng XH,Cui ZH,et al. Hydrodynamic responses and layout optimization of wave energy converter arrays consisting of five-degree-of-freedom truncated cylinders in front of a vertical wall[J]. PHYSICS OF FLUIDS,2024,36,1,:39. |
| APA | 康元顺,曾晓辉,崔哲华,&陈嘉昊.(2024).Hydrodynamic responses and layout optimization of wave energy converter arrays consisting of five-degree-of-freedom truncated cylinders in front of a vertical wall.PHYSICS OF FLUIDS,36(1),39. |
| MLA | 康元顺,et al."Hydrodynamic responses and layout optimization of wave energy converter arrays consisting of five-degree-of-freedom truncated cylinders in front of a vertical wall".PHYSICS OF FLUIDS 36.1(2024):39. |
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