引用本文: 滕斌,于梅.无限水深下波浪与二维水面物体作用的简单格林函数方法.海洋与湖沼,2022,53(4):822-829.
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 本文已被：浏览 409次   下载 308次 码上扫一扫！ 分享到： 微信 更多 字体:加大+|默认|缩小- 无限水深下波浪与二维水面物体作用的简单格林函数方法 滕斌, 于梅 大连理工大学海岸和近海工程国家重点实验室 辽宁大连 116024

DOI：10.11693/hyhz20211200318

A BEM WITH SIMPLE GREEN’S FUNCTION FOR WAVE INTERACTION WITH A 2D BODY AT THE SURFACE OF INFINITE WATER
TENG Bin, YU Mei
Dalian University of Technology, State Key Laboratory of Coastal and Offshore Engineering, Dalian 116024, China
Abstract:
To understand the interaction of waves with a two-dimensional surface body in infinite water depth, the traditional wave Green’s function has complex form and slow calculation. In order to improve the calculation efficiency and accuracy, the watershed was divided into inner domain around the object and outer domain far away from the object. Simple Green’s function method was adopted in the inner domain, and multi-pole expansion method was adopted in the outer domain. The velocity potential of any point in the watershed can be obtained through coupling solution by matching inner and outer domain boundaries. The wave excitation force, additional mass, radiation damping and transmission and reflection coefficients of the object under wave action can also be calculated. The method was applied to calculate two-dimensional water surface floating semicircle and water surface floating square box, and the numerical results show that the method can conveniently, accurately and quickly calculate the interaction between waves and arbitrary floating objects in infinite water depth.
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