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Interaction of linear waves with an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth
Feng, B.1,2; Zheng, Y. H.1,3; You, Y. G.1,2; Wu, B. J.1,2; Sheng, S. W.1,2
2008-07-01
发表期刊OCEAN ENGINEERING
ISSN0029-8018
卷号35期号:10页码:963-982
通讯作者fengbo@ms.giec.ac.cn
摘要The linear water wave scattering and radiation by an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth is investigated by use of the multipole expansion method. The diffracted and radiated potentials are expressed as a linear combination of infinite multipoles placed at the centre of each cylinder with unknown coefficients to be determined by the cylinder boundary conditions. Analytical expressions for wave forces, hydrodynamic coefficients, reflection and transmission coefficients and energies are derived. Comparisons are made between the present analytical results and those obtained by the boundary element method, and some examples are presented to illustrate the hydrodynamic behavior of multiple horizontal circular cylinders in a two-layer fluid. It is found that for two submerged circular cylinders the influence of the fluid density ratio on internal-mode wave forces is more appreciable than surface-mode wave forces, and the periodic oscillations of hydrodynamic results occur with the increase of the distance between two cylinders; for four submerged circular cylinders the influence of adding two cylinders on the wave forces of the former cylinders is small in low and high wave frequencies, but the influence is appreciable in intermediate wave frequencies. (c) 2008 Elsevier Ltd. All rights reserved.
文章类型Article
其他摘要The linear water wave scattering and radiation by an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth is investigated by use of the multipole expansion method. The diffracted and radiated potentials are expressed as a linear combination of infinite multipoles placed at the centre of each cylinder with unknown coefficients to be determined by the cylinder boundary conditions. Analytical expressions for wave forces, hydrodynamic coefficients, reflection and transmission coefficients and energies are derived. Comparisons are made between the present analytical results and those obtained by the boundary element method, and some examples are presented to illustrate the hydrodynamic behavior of multiple horizontal circular cylinders in a two-layer fluid. It is found that for two submerged circular cylinders the influence of the fluid density ratio on internal-mode wave forces is more appreciable than surface-mode wave forces, and the periodic oscillations of hydrodynamic results occur with the increase of the distance between two cylinders; for four submerged circular cylinders the influence of adding two cylinders on the wave forces of the former cylinders is small in low and high wave frequencies, but the influence is appreciable in intermediate wave frequencies.
关键词Scattering Radiation Two-layer Fluid Multipole Expansion Hydrodynamic Behavior
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.oceaneng.2008.03.004
研究领域[WOS]Engineering ; Oceanography
URL查看原文
关键词[WOS]SURFACE-WAVES ; SCATTERING ; RADIATION
收录类别SCI
语种英语
WOS类目Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
WOS记录号WOS:000257362800002
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/3420
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Beijing 100864, Peoples R China
3.Chinese Acad Sci, Qingdao Inst Biomass Energy & Bioproc Technol, Qingdao 266071, Peoples R China
第一作者单位中国科学院广州能源研究所
推荐引用方式
GB/T 7714
Feng, B.,Zheng, Y. H.,You, Y. G.,et al. Interaction of linear waves with an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth[J]. OCEAN ENGINEERING,2008,35(10):963-982.
APA Feng, B.,Zheng, Y. H.,You, Y. G.,Wu, B. J.,&Sheng, S. W..(2008).Interaction of linear waves with an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth.OCEAN ENGINEERING,35(10),963-982.
MLA Feng, B.,et al."Interaction of linear waves with an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth".OCEAN ENGINEERING 35.10(2008):963-982.
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