Enhanced sound propagation modeling of aviation noise using a hybrid Parabolic Equation-Fast Field Program method

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Approximations made in aviation noise prediction models, including the Federal Aviation Administration's current standard approach, often simplify the physics of noise production and propagation, and use methods not designed to calculate low frequency noise behavior. With the growing demand for air transportation, it is increasingly important to compute the impact of noise on communities and facilitate compatible land use management. This research, intended to provide options on enhancing the noise prediction capabilities for the Federal Aviation Administration's Aviation Environmental Design Tool in support of their Next Generation Air Transportation System (NextGen), explores the advantages of using a hybrid Parabolic Equation-Fast Field Program model for computing aviation noise contours. The hybrid model overcomes the elevation angle limitations associated with using a pure parabolic equation approach. Several numerical examples of the effects of a refractive atmosphere, range-dependent ground properties, atmospheric turbulence, and irregular terrain, accurately incorporated by the hybrid model, are considered, with emphasis on low frequency noise. The mechanics and preliminary results of converting a two-dimensional vertical sound field calculation to two-dimensional horizontal contour maps are presented.

Original languageEnglish (US)
Title of host publication38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Pages4310-4317
Number of pages8
StatePublished - Dec 1 2009
Event38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 - Ottawa, ON, Canada
Duration: Aug 23 2009Aug 26 2009

Publication series

Name38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
Volume6

Other

Other38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009
CountryCanada
CityOttawa, ON
Period8/23/098/26/09

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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