Print Email Facebook Twitter A barrier for low frequency noise from starting aircraft: Comparison between numerical and scale model results Title A barrier for low frequency noise from starting aircraft: Comparison between numerical and scale model results Author Bosschaart, C. Eisses, A.R. van der Eerden, F.J.M. Publication year 2010 Abstract Amsterdam Airport Schiphol has organized a competition to design a noise mitigating measure along the 'Polderbaan' runway. Its main goal is to reduce the low frequency (LF) ground noise from starting aircraft. The winning concept is a flexible parabolic shaped noise barrier positioned relatively close to the runway. There is a large distance between the runway and the city of Hoofddorp, so the meteorology and the ground have an important effect on the sound propagation. A numerical evaluation, using a PE model, predicts substantial attenuation for downwind conditions. For a typical downwind situation and a barrier height of 14 meters, a reduction of 6,5 dB is expected in the 31 Hz octave band. TNO has conducted scale model experiments for comparison with the PE model results. The scale model experiments were conducted in a wind tunnel in order to account for the meteorological effects. It is concluded that the PE calculations match with the scale model results. Therefore the PE model is preferred over conventional models, which predict a substantially lower reduction, for the propagation and attenuation of ground noise in situations where meteorological effects are important. Subject Physics & ElectronicsAS - Acoustics & SonarTS - Technical SciencesAcoustics and AudiologyIndustrial InnovationAirport ground noiseNumerical evaluationOutdoor sound propagationScale modelWind tunnelAmsterdam Airport SchipholBarrier heightsConventional modelsGround noiseLow-Frequency NoiseMeteorological effectsMitigating measuresModel resultsNoise barriersNumerical evaluationsOctave bandsOutdoor sound propagationScale model experimentScale modelsSound propagationAcoustic wave propagationExperimentsWind tunnelsComputer simulation To reference this document use: http://resolver.tudelft.nl/uuid:e56e7a4b-8bfc-48e0-b2f0-e6dc62ae2740 TNO identifier 466468 ISBN 9781617823961 Source 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010, 13 - 16 June 2010, Lisbon, Portugal, 9, 7227-7236 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.