Prediction of noise from a wing-in-junction flow using computational fluid dynamics
Date
2012
Authors
Doolan, C.
Coombs, J.
Moreau, D.
Zander, A.
Brooks, L.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings of Acoustics 2012, 2012, pp.1-8
Statement of Responsibility
Con J. Doolan, Jesse L. Coombs, Danielle J. Moreau, Anthony C. Zander and Laura A. Brooks
Conference Name
Conference of the Australian Acoustical Society (ACOUSTICS) (21 Nov 2012 - 23 Nov 2012 : Fremantle, Western Australia)
Abstract
The leading edge turbulence interaction noise model of Amiet was extended to incorporate span-wise variations in flow properties and integration with modern computational fluid dynamics codes. The present implementation of the leading edge noise model was validated against experimental data in the literature. To demonstrate the use of the extended leading edge noise model, the flow and noise from a wing-in-junction test case was simulated numerically. Noise was calculated using flow data from different upstream positions to illustrate the importance of choosing the most appropriate turbulence data for noise prediction. The effect of span-wise discretisation on the acoustic prediction was shown and a study of the noise contributions from each span-wise part of the wing was performed. This showed that the upper part of the wing produced the most noise. Thus, any noise mitigation strategies should be concentrated in this area for maximum effect.