Journal ArticleDOI
On the dominant noise components of tactical aircraft: Laboratory to full scale
TLDR
In this article, the authors investigated the dominant noise components of a full-scale high performance tactical aircraft using acoustic measurements of the exhaust jet from a single General Electric F414-400 turbofan engine installed in a Boeing F/A-18E Super Hornet.About:
This article is published in Journal of Sound and Vibration.The article was published on 2018-05-26. It has received 17 citations till now. The article focuses on the topics: Jet noise & Noise.read more
Citations
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Journal ArticleDOI
A phenomenological approach to jet noise: the two-source model.
TL;DR: One of the purposes of this paper is to elaborate on the flow physics of turbulence, noise generation mechanisms and directivity that are the underpinnings of the two-source model of jet noise.
Journal ArticleDOI
Broadband shock-associated noise from a high-performance military aircraft.
Aaron B. Vaughn,Tracianne B. Neilsen,Kent L. Gee,Alan T. Wall,J. Micah Downing,Michael M. James +5 more
TL;DR: While the peak frequency varies as expected, both spatially and across engine condition, the peak level and width do not, pointing to the need for additional research into BBSAN for high-performance military aircraft.
Journal ArticleDOI
Supersonic jet noise from launch vehicles: 50 years since NASA SP-8072.
TL;DR: In this paper , the authors review what has been learned about the physics of noise generation and radiation from free and impinging rocket plumes since the completion of NASA SP-8072.
Journal ArticleDOI
Three-Way Spectral Decompositions of High-Performance Military Aircraft Noise
Tracianne B. Neilsen,Aaron B. Vaughn,Kent L. Gee,S. Hales Swift,Alan T. Wall,J. Micah Downing,Michael M. James +6 more
TL;DR: A three-way spectral decomposition quantifies the contribution of turbulent mixing noise and broadband shock-associated noise to high-performance military aircraft noise.
Proceedings ArticleDOI
Inclusion of Broadband Shock-Associated Noise in Spectral Decomposition of Noise from High-performance Military Aircraft
Tracianne B. Neilsen,Aaron B. Vaughn,Kent L. Gee,S. Hales Swift,Alan T. Wall,J. M. Downing,Michael M. James +6 more
TL;DR: In this article, a three-way decomposition of the spectral density measured near a tied-down F-35B quantifies the contribution from each type of noise, including fine and large-scale turbulent mixing noise.
References
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Journal ArticleDOI
The sources of jet noise: experimental evidence
TL;DR: In this article, four different approaches are used to determine experimentally the sources of jet mixing noise: spectral and directional information measured by a single microphone in the far field, fine-scale turbulence, large turbulence structures of the jet flow, and a mirror microphone is used to measure the noise source distribution along the lengths of high speed jets.
Proceedings ArticleDOI
On the Two Components of Turbulent Mixing Noise from Supersonic Jets
TL;DR: In this paper, two similarity spectra, one for the noise from the large turbulence structures/instability waves of the jet flow, the other for the fine-scale turbulence, are identified.
Journal ArticleDOI
Shock associated noise of supersonic jets from convergent-divergent nozzles
Christopher K. W. Tam,H.K. Tanna +1 more
TL;DR: In this article, the authors derived a scaling formula that the intensity of shock associated noise varies as (Mj2 − Md2)2 where Mj and Md are the fully expanded jet operating Mach number and nozzle design Mach number, respectively.
Journal ArticleDOI
Aeroacoustics of hot jets
TL;DR: In this article, the effect of jet temperature on the noise radiated by subsonic jets was quantified and it was concluded that the change in spectral shape at high jet temperatures, normally attributed to the contribution from dipoles, is due to Reynolds number effects and not dipoles.