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 & Electronics
AS - Acoustics & Sonar
TS - Technical Sciences
Acoustics and Audiology
Industrial Innovation
Airport ground noise
Numerical evaluation
Outdoor sound propagation
Scale model
Wind tunnel
Amsterdam Airport Schiphol
Barrier heights
Conventional models
Ground noise
Low-Frequency Noise
Meteorological effects
Mitigating measures
Model results
Noise barriers
Numerical evaluations
Octave bands
Outdoor sound propagation
Scale model experiment
Scale models
Sound propagation
Acoustic wave propagation
Experiments
Wind tunnels
Computer 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