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Implementation of acoustic boundary element method for the purpose of beamforming

Meer, T.J. van der (2013) Implementation of acoustic boundary element method for the purpose of beamforming.

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Abstract:At the Institute for Aerospace Research of the National Research Council of Canada localization of sound sources around objects (e.g. a landing gear) in a wind tunnel is achieved using a technique called beamforning. This technique uses data from a phased array of microphones assuming three-dimensional point sources in free space. Hence this technique neglects the presence of the model altogether which is suspected to yield flawed results. A proof-of-concept study towards the use of the boundary element method (BEM) to simulate acoustics around an object was performed, with the ultimate goal of improvement of the beamforming procedure. The development of the open source boundary element model as well as experimental validation of this model have been performed and are presented in this report.
Item Type:Internship Report (Master)
Clients:
National Research Council, Canada
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
Keywords:Boundary element method, Acoustics, Aircraft Noise, Numerical simulation, beamforming
Link to this item:http://purl.utwente.nl/essays/69536
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