Time-domain modelling of boundary reflection using an acoustic wave propagator and image source method

N. Wang, J. Pan

Research output: Chapter in Book/Conference paperConference paper

Abstract

The acoustic wave propagator method has been developed and extended since 2000 for investigating the propagation of acoustic and flexural waves. The boundaries are usually introduced by defining the mechanical properties in the wave transmission path. This was found to be highly efficient but slightly inaccurate, especially when a boundary-smoothing technique is used to weaken the discontinuity and maintain the numerical stability. In this paper, an image source method is implemented during modelling, which simulate the boundary reflection by placing virtual sources emits similar signals at the same time. Compared with the results of several previous papers, this is found to provide a more accurate solution for studying wave propagation under different boundary conditions.

Original languageEnglish
Title of host publicationProceedings of the Australian Acoustical Society Annual Conference, AAS 2018
Place of PublicationAustralia
PublisherAustralian Acoustical Society
Pages164-169
Number of pages6
ISBN (Electronic)9781510877382
Publication statusPublished - 2019
Event2018 Australian Acoustical Society Annual Conference, AAS 2018 - Adelaide, Australia
Duration: 6 Nov 20189 Nov 2018

Publication series

NameAustralian Acoustical Society Annual Conference, AAS 2018

Conference

Conference2018 Australian Acoustical Society Annual Conference, AAS 2018
CountryAustralia
CityAdelaide
Period6/11/189/11/18

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