WIT Press


Scalar Wave Propagation In 2-D: A BEM Formulation Based On The Operational Quadrature Method

Price

Free (open access)

Paper DOI

10.2495/BE010321

Volume

28

Pages

10

Published

2001

Size

633 kb

Author(s)

A. I. Abreu R., J. A. M. Carrer and W. J. Mansur

Abstract

Scalar wave propagation in 2-D: a BEM formulation based on the operational quadrature method A. I. Abreu R., J. A. M. Carrer and W. J. Mansur Programa de Engenharia Civil, COPPE - Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil Abstract This work presents a Boundary Element Method formulation for the analysis of scalar wave propagation problems. The formulation presented here employs the so-called Operational Quadrature Method, by means of which the convolution integral, presented in time-domain BEM formulations, is substituted by a quadrature formula, whose weights are computed by using the Laplace transform of the fundamental solution and a linear multistep method. Two examples are presented at the end of the article with the aim of validating the formulation. 1 Introduction The Boundary Element Method (BEM) has been successfully applied to the solution of problems governed by the scalar wave equation. Because of the importance and wide range of app

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