In this paper, a time-domain equivalent source method (ESM) for acoustic scattering prediction is suggested, based on acoustic velocity formulations. Incident and scattered acoustic predictions are realized by acoustic velocity formulation V1A of Ghorbaniasl. Formulation V1A is based on the FW-H equation and allows direct evaluation of the boundary condition, without requiring acoustic pressure gradient computation.The scattering approach is implemented and validated by the analytical case of scattering of a pulsating monopole source by a rigid sphere. The developed methodology is efficient for scattering problems where broadband noise sources are considered.
Original languageEnglish
Pages (from-to)381-389
Number of pages9
JournalApplied Acoustics
Volume148
DOIs
Publication statusPublished - 1 May 2019

    Research areas

  • Acoustic scattering, Acoustic velocity, Computational aeroacoustics, Equivalent sources, Time domain

ID: 43899662