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Supersonic Jet Noise: Main Sources and Reduction Methodologies

By Mohammadreza Azimi and Fathollah Ommi

Abstract

The large velocity ratio and the presence of Shocks in the exhaust plume from low bypass engines or supersonic jetliners\ud cause jet noise to be dominant component of overall aircraft noise, and therefore is an important issue in design of the\ud next generation of civil supersonic transport. Jet noise reduction technology also has application in the design of highperformance\ud tactical aircraft. Jet noise is of particular concern on aircraft carriers where it is necessary for deck crew to\ud be in relatively close proximity to the aircraft at takeoff and landing. In this paper, a brief discussion about supersonic jet\ud noise sources and a review of the main passive technologies employed for the reduction of supersonic jet noise are\ud presented

Topics: Aviation Emissions, Aircraft Noise, Supersonic Jet Noise, Turbulent Mixing Enhancement, Mach Wave Elimination., Engineering (General). Civil engineering (General), TA1-2040, Technology (General), T1-995
Publisher: Eastern Macedonia and Thrace Institute of Technology
Year: 2014
OAI identifier: oai:doaj.org/article:2f23dac9c8dc4fb9809ab7fd05187d99
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