Using optimisation techniques within a rapid-distortion theory framework to improve trailing edge noise predictions

Research output: Contribution to conferencePaperpeer-review

Abstract

Goldstein, Leib & Afsar [1] found that the acoustic spectrum for the round jet scattering problem is given a formula that involves the Fourier transform of the turbulence function, R22. We extend this acoustic model to enable representation of the anti-correlation region which was previously excluded. There are several parameters within the model which need to be selected in order to nd the optimum acoustic spectrum across acoustic Mach number and far-field angle. Here we discuss the optimisation methods which were used to obtain these parameters.
Original languageEnglish
Number of pages2
Publication statusPublished - 28 Oct 2020
EventSeventeenth International Conference on Flow Dynamics - Virtual Conference and Tohoku University, Sendai, Japan
Duration: 28 Oct 202030 Oct 2020
http://www.ifs.tohoku.ac.jp/icfd2020/

Conference

ConferenceSeventeenth International Conference on Flow Dynamics
Abbreviated titleICFD17 2020
Country/TerritoryJapan
CitySendai
Period28/10/2030/10/20
Internet address

Keywords

  • rapid-distortion theory
  • turbulence theory
  • computational fluid dynamics (CFD) models
  • jet flow
  • aero-acoustics
  • trailing edge noise predictions

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