Interaction of oblique waves with an array of long horizontal circular cylinders

作     者：NG Chiu-On 

作者机构：Department of Mechanical Engineering the University of Hong Kong Pokfulam Road Hong Kong China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2007年第50卷第4期

页      面：490-509页

核心收录：

学科分类：0810[工学-信息与通信工程] 080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by the National Basic Research Program of China (Grant No. 2005CB724202) the Hi-Tech Research and Development Program of China (Grant No. 20060105Z4010) the Hong Kong Research Grants Council (Grant No. HKU 7199/03E) 

主　　题：scattering and radiation water waves analytical technique hydrodynamic characteristics 

摘      要：The scattering and radiations of linear oblique waves by multiple long horizontal circular cylinders submerged in water of finite depth are investigated using the multipole expansion method. Analytical expressions for the diffracted and radiated potentials are given as a linear combination of infinite multipoles. The unknown coefficients in the expressions are determined by using the addition theorem of the Bessel function and the cylinder boundary conditions. Also analytical expressions for wave forces, hydrodynamic coefficients and reflection and transmission coeffi-cients are derived. The present analytical solution is verified through the boundary element method and applied to investigate three different cases of the interaction of oblique waves with multiple submerged horizontal circular cylinders. The results show that the number of cylinders, the arrangement and spacing between cylinders play an important role in wave forces, hydrodynamic coefficients and reflection and transmission coefficients. Some interesting and important phenomena are ob-served in numerical experiments.