WIT Press


Incorporation Of Absorbing Boundary Conditions Into Acoustic And Elastic Wave Propagation Problems Solved By Spectral Time-marching

Price

Free (open access)

Paper DOI

10.2495/ASE950321

Volume

11

Pages

8

Published

1995

Size

616 kb

Author(s)

M.J. Yedlin & Y. Luo

Abstract

The focus of this paper is a detailed description of the incorporation of absorbing boundary conditions in the symbolic solution of the two- dimensional elastic wave equation. This symbolic solution forms the basis for the spectral time-marching technique, which is also described. Appli- cation of the absorbing boundary conditions necessitates the employment of a spatial spectral discretization, yielding an algorithm whose accuracy is balanced in time and space. The kernel operation of this time-stepping algorithm is matrix multiplication, efficiently implemented on existing supercomputers . 1 Introduction introduce

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