Response of a panel structure forced by the noise from a nearly sonic jet

C. C. Fenno, A. Bayliss, L. Maestrello

Research output: Contribution to conferencePaper

Abstract

A model of a high subsonic jet with a nearby array of flexible, aircraft-type panels is studied numerically in two dimensions. The jet is excited by a limited duration, spatially localized starter pulse in the potential core. The long time evolution of unsteady disturbances in the jet, the responses of the panels and the ensuing radiation are computed. The results show that the spectral response of both the jet and the panels is concentrated in a relatively narrow frequency band centered at a Strouhal number (based on jet exit velocity) of approximately 0.25 and associated harmonics. The loading on the panels generally increases with downstream distance. Panel radiation is weakest in upstream directions. Interior zones of silence, due to destructive interference of radiation from the panels, are observed.

Original languageEnglish (US)
DOIs
StatePublished - 1996
Event2nd AIAA/CEAS Aeroacoustics Conference, 1996 - State College, United States
Duration: May 6 1996May 8 1996

Other

Other2nd AIAA/CEAS Aeroacoustics Conference, 1996
CountryUnited States
CityState College
Period5/6/965/8/96

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering

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    Fenno, C. C., Bayliss, A., & Maestrello, L. (1996). Response of a panel structure forced by the noise from a nearly sonic jet. Paper presented at 2nd AIAA/CEAS Aeroacoustics Conference, 1996, State College, United States. https://doi.org/10.2514/6.1996-1762