Interaction of linear waves with an array of infinitely long horizontal circular cylinders in a two-layer fluid of infinite depth

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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
刊名	ocean engineering
	2008-07-01
卷号	35 期号:10 页码:963-982
关键词	scattering radiation two-layer fluid multipole expansion hydrodynamic behavior
ISSN号	0029-8018
通讯作者	fengbo@ms.giec.ac.cn
中文摘要	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.
英文摘要	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.
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	engineering, marine ; engineering, civil ; engineering, ocean ; oceanography
研究领域[WOS]	engineering ; oceanography
关键词[WOS]	surface-waves ; scattering ; radiation
收录类别	SCI
原文出处	http://www.sciencedirect.com/science/journal/00298018
语种	英语
WOS记录号	WOS:000257362800002
公开日期	2010-09-23
内容类型	期刊论文
源URL	[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
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.