WAVE ENVELOPE EXAMPLES FOR PROGRESSIVE WAVES

被引：17

作者：

BETTESS, P

CHADWICK, E

机构：

[1] Department of Marine Technology, University of Newcastle upon Tyne, Newcastle Upon Tyne, NE1 7RU, Armstrong Building, Queen Victoria Road

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 1995年 / 38卷 / 15期

关键词：

SHORT WAVES; WAVE ENVELOPE FINITE ELEMENTS;

D O I：

10.1002/nme.1620381502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The wave envelope method, due to Astley,(1) is applied to some simple propagating wave problems governed by the Helmholtz equation and similar equations. It is shown that the method yields solutions which for some of the problems are exact and for the others are approximate and complex. In these cases however, when the number of elements is increased the trial function becomes a better approximation.

引用

页码：2487 / 2508

页数：22

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