Experimental and computational study of near field/far field correlations in supersonic jet noise

Ching Wen Kuo, Yongle Du, Dennis K. McLaughlin, Philip John Morris

Research output: Contribution to conferencePaper

10 Scopus citations

Abstract

This paper describes near field/far field correlations for supersonic jet noise with the use of both numerical simulations and experimental measurements. Examples are provided of correlations between the output from an Optical Deflectomter (OD) and far field microphone measurements. Numerical simulations using a modified Detached Eddy Simulation are performed for nozzle geometries typical of high performance military aircraft. Correlations are performed between the simulated flow field fluctuations and the predicted far field acoustic pressure. Comparisons are made between the simulations and experiments. The relationship between the output of the OD and the flow field fluctuations is discussed based on the numerical simulations. The results demonstrate the potential advantages of the complementary use of both unsteady flow measurements and simulations in understanding the noise generation mechanisms in high speed jets.

Original languageEnglish (US)
StatePublished - Jun 20 2012
Event50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States
Duration: Jan 9 2012Jan 12 2012

Other

Other50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityNashville, TN
Period1/9/121/12/12

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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    Kuo, C. W., Du, Y., McLaughlin, D. K., & Morris, P. J. (2012). Experimental and computational study of near field/far field correlations in supersonic jet noise. Paper presented at 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Nashville, TN, United States.