| Water wave radiation by an array of bottom-mounted surface-piercing concentric cylinders | |
Zhang MH(张莫晗); Wang, Guangyuan; Yin B(银波)
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| Source Publication | PHYSICS OF FLUIDS
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| 2024-11 | |
| Volume | 36Issue:11Pages:117114 |
| ISSN | 1070-6631 |
| Abstract | This paper develops a wave radiation analysis model in horizontal oscillation mode for concentric cylindrical arrays with arbitrary numbers and arrangements within the framework of linear potential flow theory. The concentric cylinders have solid inner cylinders and porous outer cylinders, and they are both bottom-mounted and surface-piercing. The porous boundary conditions of the outer cylinders are treated using Darcy's law, and the flow field is divided into one outer region and N (number of cylinders) inner regions with the outer cylinders as the boundary. Employing eigenfunction expansion and region-matching methods, expressions for the radiation velocity potential of each region are obtained, and then expressions of the added mass and damping coefficient of each cylinder are obtained. Following a rigorous verification of the results against published literature, this paper proceeds to analyze the impact of various parameters, including oscillation modes, outer cylinder permeability, radius ratio, spacing, and the number of cylinders, on the wave radiation characteristics of tandem-arranged cylindrical arrays. The research reveals that when the oscillation direction of the structure is parallel with its arrangement direction, the hydrodynamic coefficient curves exhibit significant spikes, attributed to the influence of the Dirichlet trapped mode. Outside the peak regions, the hydrodynamic coefficient curves display regular fluctuations, which are attributed to the alternating occurrence of constructive and destructive interference effects within the wave field. |
| DOI | 10.1063/5.0238241 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001348093700012 |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Organization | National Natural Science Foundation of China10.13039/501100001809 {12272383] ; National Natural Science Foundation of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Wang GY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/97222 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.【Zhang, Mohan & Yin, Bo】 Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China 2.【Wang, Guangyuan】 MOT, Tianjin Res Inst Water Transport Engn, Natl Engn Res Ctr Port Hydraul Construct Technol, Tianjin, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang MH,Wang, Guangyuan,Yin B. Water wave radiation by an array of bottom-mounted surface-piercing concentric cylinders[J]. PHYSICS OF FLUIDS,2024,36,11,:117114.Rp_Au:Wang GY |
| APA | 张莫晗,Wang, Guangyuan,&银波.(2024).Water wave radiation by an array of bottom-mounted surface-piercing concentric cylinders.PHYSICS OF FLUIDS,36(11),117114. |
| MLA | 张莫晗,et al."Water wave radiation by an array of bottom-mounted surface-piercing concentric cylinders".PHYSICS OF FLUIDS 36.11(2024):117114. |
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