@inproceedings{36fd478156a34ebb8096ce6e5637c26c,
title = "Aero-acoustic simulations of an orifice plate mounted in a low-Mach-number ducted flow",
abstract = "Aero-acoustic simulations are performed for an orifice plate mounted in a straight duct in a low-Mach number flow. A two-dimensional flow-field is calculated by solv- ing the Navier-Stokes equations by means of a large-eddy simulation (LES), using a high-order finite difference scheme. The scheme uses summation-by-parts (SBP) finite difference operators with simultaneous approximation terms (SAT) to impose boundary conditions. The flow is decomposed using dynamic mode decomposition (DMD) in order to gain insight into the generation of sound by the flow. The frequency of the higher amplitude modes is shown to agree well the frequencies of the highest amplitude peaks in the power spectral density of the outgoing acoustic waves.",
author = "O'Reilly, {Ciar{\'a}n J.} and Emma Alenius and Gunilla Efraimsson and Bodony, {Daniel J.}",
year = "2012",
language = "English (US)",
isbn = "9781600869327",
series = "18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference)",
booktitle = "18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference)",
note = "18th AIAA/CEAS Aeroacoustics Conference 2012 (33rd AIAA Aeroacoustics Conference) ; Conference date: 04-06-2012 Through 06-06-2012",
}