Prediction of flat plate self-noise

K. W. Chang, J. H. Seo, Y. J. Moon, M. Roger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

In this study, the accuracy of the computational methodology developed for prediction of turbulent flow noise at low Mach numbers is assessed for the flat plate self-noise. The far-field serf-noise and the wall-pressure field over the flat plate (chord=10cm, thickness=3mm, and span=30cm) are measured at Ecole Centrale de Lyon for a flow speed UC=20m/s at zero angle of attack. The three-dimensional turbulent flow over the plate is computed by incompressible large eddy simulation (LES), while the near- and far-field acoustics are calculated by the linearized perturbed compressible equations (LPCE), coupled with the LES solutions. Comparisons are made for the wall pressure PSD spectra near the trailing-edge, the spanwise coherence function of the surface pressure, and the far-field sound pressure level spectrum. The computations agree well with the experiment. The tonal and broadband noise characteristics of the flat plate are also discussed.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference
Pages1451-1464
Number of pages14
Publication statusPublished - 2006
Event12th AIAA/CEAS Aeroacoustics Conference - Cambridge, MA, United States
Duration: 2006 May 82006 May 10

Publication series

NameCollection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference
Volume3

Other

Other12th AIAA/CEAS Aeroacoustics Conference
CountryUnited States
CityCambridge, MA
Period06/5/806/5/10

ASJC Scopus subject areas

  • Engineering(all)

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    Chang, K. W., Seo, J. H., Moon, Y. J., & Roger, M. (2006). Prediction of flat plate self-noise. In Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference (pp. 1451-1464). (Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference; Vol. 3).