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Prediction of Flyover Jet Noise Spectra

Michel, Ulf and Michalke, Alfons (1981) Prediction of Flyover Jet Noise Spectra. In: AIAA Paper AIAA-81-2025, pp. 1-8. American Institute of Aeronautics and Astronautics. AIAA 7th Aeroacoustics Conference, 1981-10-05 - 1981-10-07, Palo Alto, California, USA.

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Official URL: http://www.aiaa.org/


A scaling law for the prediction of flyover noise spectra of a single stream shock free circular jet from static experiments is derived. It is valid for unheated and heated jets. The theory is based on an experimentally supported similarity law for the influence of the flight velocity on the turbulent flow field of a jet. The resulting scaling laws for the difference between third octave spectra and the overall sound pressure level compare very well with flyover experiments with a jet engine and wind tunnel experiments with a heated model jet.

Item URL in elib:https://elib.dlr.de/20902/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Prediction of Flyover Jet Noise Spectra
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:5 October 1981
Journal or Publication Title:AIAA Paper AIAA-81-2025
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-8
Publisher:American Institute of Aeronautics and Astronautics
Keywords:jet noise, flight effect, one-third octave spectra, similarity law
Event Title:AIAA 7th Aeroacoustics Conference
Event Location:Palo Alto, California, USA
Event Type:international Conference
Event Start Date:5 October 1981
Event End Date:7 October 1981
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: other
Institutes and Institutions:Institute of Propulsion Technology > Engine Acoustic > Turbulence Research
Deposited By: Michel, Prof. Dr.-Ing. Ulf
Deposited On:05 Jan 2006
Last Modified:24 Apr 2024 19:02

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