大尺度物体在层化海洋中的波浪绕射和散射理论(Ⅲ)边界元方法  

A Theory of Wave Diffraction and Radiation by a Large Body in Stratified Ocean (Ⅲ) Boundary Element Method

作　　者：吴建华[1] 吴秀恒[1] 李世谟[1] 

机构地区：[1]武汉水运工程学院

出　　处：《水动力学研究与进展（A辑）》1990年第1期74-80,共7页Chinese Journal of Hydrodynamics

摘　　要：本文利用格林公式,给出了在层化海洋中用格林函数表出的波浪绕射与散射波场中的扰动压力振幅的积分解表达式,并采用Fourier变换方法求得格林函数的解析解,导出了相应的边界积分方程,从而成功地将边界元方法应用于层化海洋中的波浪绕射和散射问题的研究中来。In this paper, by introducing a Green function and using Green's theorem, a formal solution of the disturbance pressure for the wave diffraction and radiation problems in stratified ocean has been derived, so has the boundary intergal equation. Furthermore, the Analytical solution of the Green function in stratified ocean has been found by applying Fourier transforms. Based on this work, the boundary element method which can be applied to the wave diffraction and radiation problems in stratified ocean has been developped here.

关 键 词：大尺度物体 层化海洋 波浪绕射 波浪散射 边界元 

分 类 号：P731.22[天文地球—海洋科学]