Large eddy simulation of plane jet sound radiation
Large eddy simulation of plane jet sound radiation
Large eddy simulations (LES) of a subsonic plane jet at a Mach number of 0.9 and a Reynolds number of 2000 have been carried out using different subgrid scale (SGS) models. The performance of these SGS models has been compared with direct numerical simulation of the plane jet. The principal aim of this work is to assess the influence on the far-field sound prediction of the various numerical and modeling choices. The Ffowcs Williams-Hawkings (FW-H) approach is applied with surface sources computed from LES to predict far-field sound radiation from the plane jet. A useful frequency range is identified, limited at the lower end by spanwise box size and at the upper end by numerical resolution. Changes in the predicted sound during jet evolution from an initial symmetric response to a later asymmetric sinuous response are discussed along with the influence of the SGS model.
8pp
Hu, Z.W.
dd985844-1e6b-44ba-9e1d-fa57c6c88d65
Morfey, C.L.
d5f9a8d0-7d8a-4915-a522-bf49dee111f2
Sandham, N.D.
0024d8cd-c788-4811-a470-57934fbdcf97
2003
Hu, Z.W.
dd985844-1e6b-44ba-9e1d-fa57c6c88d65
Morfey, C.L.
d5f9a8d0-7d8a-4915-a522-bf49dee111f2
Sandham, N.D.
0024d8cd-c788-4811-a470-57934fbdcf97
Hu, Z.W., Morfey, C.L. and Sandham, N.D.
(2003)
Large eddy simulation of plane jet sound radiation.
9th AIAA/CEAS Aeroacoustics Conference and Exhibit, Hilton Head, South Carolina, USA.
11 - 13 May 2003.
.
Record type:
Conference or Workshop Item
(Other)
Abstract
Large eddy simulations (LES) of a subsonic plane jet at a Mach number of 0.9 and a Reynolds number of 2000 have been carried out using different subgrid scale (SGS) models. The performance of these SGS models has been compared with direct numerical simulation of the plane jet. The principal aim of this work is to assess the influence on the far-field sound prediction of the various numerical and modeling choices. The Ffowcs Williams-Hawkings (FW-H) approach is applied with surface sources computed from LES to predict far-field sound radiation from the plane jet. A useful frequency range is identified, limited at the lower end by spanwise box size and at the upper end by numerical resolution. Changes in the predicted sound during jet evolution from an initial symmetric response to a later asymmetric sinuous response are discussed along with the influence of the SGS model.
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Published date: 2003
Venue - Dates:
9th AIAA/CEAS Aeroacoustics Conference and Exhibit, Hilton Head, South Carolina, USA, 2003-05-11 - 2003-05-13
Organisations:
Aerodynamics & Flight Mechanics
Identifiers
Local EPrints ID: 10377
URI: http://eprints.soton.ac.uk/id/eprint/10377
PURE UUID: 181d3ea9-2d91-4644-8a61-7e4a9f0c50dc
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Date deposited: 19 Oct 2005
Last modified: 12 Dec 2021 03:05
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Contributors
Author:
C.L. Morfey
Author:
N.D. Sandham
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