Fast computation of time-dependent acoustic fields

Michael Carley, Ghader Ghorbaniasl

Research output: Contribution to journalArticlepeer-review


A method for the fast evaluation of time-dependent acoustic fields from complex sources is presented. The technique is based on a fast integration method for the boundary integral arising in a Kirchhoff formulation and requires a small, and roughly constant, computation time to compute a transient signal, at the expense of a pre-processing stage. In the calculations in this paper, based on test cases for a single rotor, a counter-rotating open rotor, and a broadband volume source, it is found that transient field calculations require an order of magnitude less computational time for the field from an array of 16 384 sources, a computational advantage that increases with source number.
Original languageEnglish
Pages (from-to)3963-3970
Number of pages8
JournalJournal of the Acoustical Society of America
Issue number5
Publication statusPublished - 23 Nov 2016


  • acoustic field
  • fast evaluation
  • Kirchhoff
  • transiet signal


Dive into the research topics of 'Fast computation of time-dependent acoustic fields'. Together they form a unique fingerprint.

Cite this