Processing and analysis methods for transonic cavity flow

Loupy, G.J.M. and Barakos, G.N. (2017) Processing and analysis methods for transonic cavity flow. Physics of Fluids, 29(7), 076105. (doi:10.1063/1.4995461)

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Abstract

This paper focuses on the localisation of noise sources in transonic cavity flows. Beamforming is used to estimate the pressure fluctuations inside a resonant transonic cavity, showing the localisation of the main sources of noise using an acoustic array and also combining it with a mean flow-field. The influence of the microphone array position, density, and shape is investigated. The presented method models the noise propagation with simple assumptions that are easily applicable to wind tunnel testing and may help localise the noise sources from complex geometries without intrusive methods.

Item Type:Articles
Additional Information:The financial support of MBDA UK Ltd. is gratefully acknowledged. The use of the EPSRC funded ARCHIEWeSt High Performance Computer (EPSRC Grant No. EP/K000586/1) is also gratefully acknowledged.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barakos, Professor George and Loupy, Gaëtan
Authors: Loupy, G.J.M., and Barakos, G.N.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Physics of Fluids
Publisher:American Institute of Physics
ISSN:1070-6631
ISSN (Online):1089-7666
Published Online:31 July 2017
Copyright Holders:Copyright © 2017 AIP Publishing
First Published:First published in Physics of Fluids 29(7): 076105
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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