Design And Evaluation Of A High-Speed Aeroacoustic Wind Tunnel

Authors

  • Frank Giardino Carleton University
  • Joana Rocha Carleton University

Keywords:

Aeroacoustics

Abstract

 During cruise flight, the main source of acoustic noise radiation

within the aircraft cabin occurs as a result of structural

vibrations of the flexible fuselage panels due to the random

pressure fluctuation field imposed by the Turbulent Boundary

Layer (TBL) [1]. Conventional methods of describing these

interactions have relied on the use of various statistical semiempirical

models which predict the behavior of the TBL pressure

fluctuation spectrum. Each model however makes fairly

different predictions with regards to the spectrum in the various

frequency regions. There is therefore a need to not only

assess these inconsistencies with experimental methods, but

also to clarify the fundamental physical relationship between

the turbulent structures and the resulting fluctuation signature.

The present phase of this research initiative at Carleton University

involves the design and fabrication of the new High-

Speed Aeroacoustic Wind Tunnel (HSAWT), which is capable

of studying wall pressure fluctuation behavior at subsonic

flow speeds up to typical cruise flight conditions.

Author Biography

Joana Rocha, Carleton University

- Associate Professor, Department of Mechanical and Aerospace Engineering, Carleton University (July 2012 - present)

- Doctor of Philosophy (Ph.D.), Department of Mechanical Engineering, University of Victoria: Turbulent Flow-Induced Noise Prediction in Aircraft during Flight

- Master of Applied Science (M.A.Sc.), Department of Mechanical Engineering, University of Victoria: Aircraft Wing Design and Wind Tunnel Testing for Noise and Vibration Reduction

 

Published

2019-02-21

How to Cite

1.
Giardino F, Rocha J. Design And Evaluation Of A High-Speed Aeroacoustic Wind Tunnel. Canadian Acoustics [Internet]. 2019Feb.21 [cited 2021May12];46(4):12-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3219

Issue

Section

Proceedings of the Acoustics Week in Canada

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