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

C. C. Fenno; A. Bayliss; L. Maestrello

doi:10.2514/6.1996-1762

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

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

Engineering Sciences and Applied Mathematics

Research output: Contribution to conference › Paper › peer-review

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 language	English (US)
DOIs	https://doi.org/10.2514/6.1996-1762
State	Published - 1996
Event	2nd AIAA/CEAS Aeroacoustics Conference, 1996 - State College, United States Duration: May 6 1996 → May 8 1996

Other

Other	2nd AIAA/CEAS Aeroacoustics Conference, 1996
Country/Territory	United States
City	State College
Period	5/6/96 → 5/8/96

ASJC Scopus subject areas

Electrical and Electronic Engineering
Aerospace Engineering

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10.2514/6.1996-1762

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title = "Response of a panel structure forced by the noise from a nearly sonic jet",

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.",

author = "Fenno, {C. C.} and A. Bayliss and L. Maestrello",

note = "Publisher Copyright: {\textcopyright} 1996, American Institute of Aeronautics and Astronautics, Inc.; 2nd AIAA/CEAS Aeroacoustics Conference, 1996 ; Conference date: 06-05-1996 Through 08-05-1996",

year = "1996",

doi = "10.2514/6.1996-1762",

language = "English (US)",

}

TY - CONF

T1 - Response of a panel structure forced by the noise from a nearly sonic jet

AU - Fenno, C. C.

AU - Bayliss, A.

AU - Maestrello, L.

PY - 1996

Y1 - 1996

N2 - 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.

AB - 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.

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DO - 10.2514/6.1996-1762

M3 - Paper

AN - SCOPUS:84977070405

T2 - 2nd AIAA/CEAS Aeroacoustics Conference, 1996

Y2 - 6 May 1996 through 8 May 1996

ER -

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

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