A numerical study of sound-structure interaction in a duct structure by the acoustical wave propagator method

Shuzhi Peng, Li Cheng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The pseudospectral time-domain method has long been used to describe the acoustical wave propagation. However, due to the limitation and difficulties of the FFT, the dispersion error is hard to be avoided and the computational accuracy greatly decreases after the waves arrive at the non-periodic boundary. To resolve this problem, the Lagrange-Chebyshev interpolation polynomials are used to replace the previous FFT. In addition, a mapping method is introduced to overcome the additional time-step restriction. In this paper, several issues are addressed to explore its numerical performances: the numerical accuracy, computational efficiency and stability of this proposed method.
Original languageEnglish
Title of host publication14th International Congress on Sound and Vibration 2007, ICSV 2007
Pages180-187
Number of pages8
Volume1
Publication statusPublished - 1 Dec 2007
Event14th International Congress on Sound and Vibration 2007, ICSV 2007 - Cairns, QLD, Australia
Duration: 9 Jul 200712 Jul 2007

Conference

Conference14th International Congress on Sound and Vibration 2007, ICSV 2007
Country/TerritoryAustralia
CityCairns, QLD
Period9/07/0712/07/07

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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