变水深下孤立波对直立大圆柱的绕射  

Solitary Wave Diffraction around Large Cylinder in Variable Depth

作　　者：陈永泽[1] 陈耀松[1] 

机构地区：[1]北京大学力学系

出　　处：《水动力学研究与进展（A辑）》1990年第4期1-11,共11页Chinese Journal of Hydrodynamics

摘　　要：本文以平均速度势表示的Boussinesq方程为控制方程,采用文献[1]中所提出的谱方法,研究孤立波在变水深下对直立大圆柱的绕射。通过数值方法求得圆柱所受到的波浪力系数,讨论水深变化对圆柱波浪力系数的影响。Using the spectral method presented by [1], the diffraction of a solitary wave around large vertical cylinder is investigated by solving the Boussinesq equations which are expressed by depth-averaged velocity potential. The wave force coefficient exerted on cylinder is obtained by means of numerical method and the influence of depth variations on the force coefficient is discussed in this paper.

关 键 词：圆柱 孤立波 绕射 谱法 

分 类 号：O352[理学—流体力学]