Direct numerical simulation of the noise from a Mach 0.9 jet

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A Mach 0.9 jet at Reynolds number 3600 is simulated along with its radiated sound by direct numerical solution of the flow equations. The numerical simulation is shown to be in excellent agreement with experimental measurements at the same flow conditions. Basic turbulence and sound statistics are presented and analyzed. Pressure data is Fourier transformed in the streamwise direction and in time and this is used to compute the Lighthill acoustic source. Evaluation of Lighthill's analogy shows good agreement with the directly computed sound field. Having validated both the simulation and Lighthill's equation, a future direction is briefly outlined where a space/time Fourier analysis of the sources will be conducted.

Original languageEnglish (US)
Title of host publicationProceedings of the 1999 3rd ASME/JSME Joint Fluids Engineering Conference, FEDSM'99, San Francisco, California, USA, 18-23 July 1999 (CD-ROM)
PublisherAmerican Society of Mechanical Engineers
Number of pages1
ISBN (Print)0791819612
StatePublished - Dec 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

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