@inproceedings{9e4ec3711b4448c6acbead617a7bd4ff,
title = "Numerical simulation of flow-induced sound generation from an orifice 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. The flow field is calculated by solving the filtered Navier-Stokes equations by means of direct numerical simulation (DNS), 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. Both the scattering of the sound (passive part) as well as the sound generation (active part) are studied in the low frequency plane wave range. An acoustic two-port model is applied to describe the sound in the duct. The results are compared with experimental data for the same configuration. The efficiency and robustness of the numerical technique are also examined.",
author = "O'Reilly, {Ciar{\'a}n J.} and Emma Alenius and Gunilla Efraimsson and Bodony, {Daniel J.}",
year = "2011",
doi = "10.2514/6.2011-2894",
language = "English (US)",
isbn = "9781600869433",
series = "17th AIAA/CEAS Aeroacoustics Conference 2011 (32nd AIAA Aeroacoustics Conference)",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "17th AIAA/CEAS Aeroacoustics Conference 2011 (32nd AIAA Aeroacoustics Conference)",
note = "17th AIAA/CEAS Aeroacoustics Conference 2011 (32nd AIAA Aeroacoustics Conference) ; Conference date: 05-06-2011 Through 08-06-2011",
}