@inproceedings{5d1c5400adee44d180577ceaf4958b65,
title = "Self-noise prediction of a sharp-edged strut using a quasi-periodic cfd-bem technique",
abstract = "The self-noise generated by a sharp-edged strut immersed in low Mach number flow is predicted using a hybrid computational fluid dynamics (CFD) - boundary element method (BEM) technique. The fluctuating flow field is obtained using an incompressible CFD solver. A high-order reconstruction scheme is used to extract acoustic sources based on Lighthill's analogy from the flow field data. Acoustic waves generated by these flow noise sources propagate to and are scattered by the trailing edge of the strut. A BEM model of the sharp-edged strut, based on the Burton-Miller formulation, is used to predict the scattered sound pressure. A quasi-periodic technique is implemented in the BEM model so that the sound generated by the entire span of the strut can be predicted by modelling only a small spanwise segment. The results from the hybrid CFD-BEM technique are presented for turbulent flow past a sharp-edged strut, with Reynolds number based on chord Rec=2.07×105 and Mach number M=0.044. The computed aerodynamic and acoustic results are compared with experimental data obtained using the anechoic wind tunnel at the University of Adelaide.",
keywords = "Boundary element method, Computational fluid dynamics, Trailing edge noise",
author = "Mahmoud Karimi and Paul Croaker and Nicole Kessissoglou and Con Doolan and Steffen Marburg",
year = "2014",
language = "English",
series = "INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control",
publisher = "Australian Acoustical Society",
editor = "John Davy and Marion Burgess and Charles Don and Liz Dowsett and Terry McMinn and Norm Broner",
booktitle = "INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering",
note = "43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 ; Conference date: 16-11-2014 Through 19-11-2014",
}