Half-space boundary element method for acoustic problems with a reflecting plane of arbitrary impedance

W. L. Li, T. W. Wu, A. F. Seybert

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

In this paper, the boundary element method (BEM) is used to model acoustic radiation and scattering from bodies of arbitrary shape in close proximity of an infinite plane that has a general impedance boundary condition. A new half-space Green's function for positive reactance boundary conditions is derived and incorporated in the boundary element formulation so that there is no need to model the infinite plane. attempt is also made to derived Green's function for negative reactance boundary conditions contains a term that is not known a priori. Only an approximate Green's function for negative reactance boundary conditions is used in the BEM. Several numerical examples are given to verify this new formulation.

Original languageEnglish
Pages (from-to)173-184
Number of pages12
JournalJournal of Sound and Vibration
Volume171
Issue number2
DOIs
StatePublished - Mar 24 1994

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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