A new infinite element for unbounded water wave problems

被引：6

作者：

Baghbani, A ^{[1
]}

Gregory-Smith, D

机构：

[1] Univ Mazandaran, Sch Engn, Babol 47144, Iran

[2] Univ Durham, Sch Engn, Durham DH1 3LE, England

来源：

APPLIED OCEAN RESEARCH | 2003年 / 25卷 / 04期

关键词：

wave diffraction; finite elements; infinite elements; wave envelope; ellipse;

D O I：

10.1016/j.apor.2004.02.001

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

A new mapped infinite wave envelope element is developed to model two-dimensional unbounded water wave problems in conjunction with wave finite elements. The infinite elements may be used on the exterior of an ellipse or other shapes. Examples are implemented to test the model for the two special cases of circular and elliptical cylinder diffraction problems. Comparisons are made between the analytical and finite/infinite element solutions. The errors are small, around 2% for a very coarse mesh and decrease to around 0.5% when the wave envelope infinite elements are located reasonably far from the diffracting object, i.e. at a distance equal to the semi-major axis of the ellipse. (C) 2004 Published by Elsevier Ltd.

引用

页码：213 / 223

页数：11