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Noise Generated by a Lifted Flame in a Vitiated Co-Flow

Szász, Robert-Zoltán LU ; Duwig, Christophe LU and Fuchs, Laszlo LU (2008) 53rd ASME Turbo Expo 2008 In Proceedings of the Asme Turbo Expo 2008, vol 3, PTS A and B p.867-876
Abstract
The acoustic field generated by a lifted flame is studied by a hybrid approach. First, Large Eddy Simulations (LES) are used to compute the flow and the acoustic sources. Next, an inhomogeneous wave equation is solved to obtain the resulting acoustic field. The flow computations show good agreement with experimental data. The dominant acoustic sources are found to be located in the ignition region and at the tip of the flame. The acoustic computations revealed the presence of low-frequency waves radiated in the far-field. The shape of the most energetic acoustic modes are identified by POD analysis to be axial modes.
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of the Asme Turbo Expo 2008, vol 3, PTS A and B
pages
867 - 876
publisher
American Society Of Mechanical Engineers (ASME)
conference name
53rd ASME Turbo Expo 2008
external identifiers
  • WOS:000263203100082
  • Scopus:69949176466
ISBN
978-0-7918-4313-0
language
English
LU publication?
yes
id
850a539d-ff49-43c8-ae4b-2c0047a0d2de (old id 1375617)
date added to LUP
2009-04-17 09:58:55
date last changed
2016-10-13 04:48:51
@misc{850a539d-ff49-43c8-ae4b-2c0047a0d2de,
  abstract     = {The acoustic field generated by a lifted flame is studied by a hybrid approach. First, Large Eddy Simulations (LES) are used to compute the flow and the acoustic sources. Next, an inhomogeneous wave equation is solved to obtain the resulting acoustic field. The flow computations show good agreement with experimental data. The dominant acoustic sources are found to be located in the ignition region and at the tip of the flame. The acoustic computations revealed the presence of low-frequency waves radiated in the far-field. The shape of the most energetic acoustic modes are identified by POD analysis to be axial modes.},
  author       = {Szász, Robert-Zoltán and Duwig, Christophe and Fuchs, Laszlo},
  isbn         = {978-0-7918-4313-0},
  language     = {eng},
  pages        = {867--876},
  publisher    = {ARRAY(0x8ff5e28)},
  series       = {Proceedings of the Asme Turbo Expo 2008, vol 3, PTS A and B},
  title        = {Noise Generated by a Lifted Flame in a Vitiated Co-Flow},
  year         = {2008},
}