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Large scale rotating motions in a multiple jets combustor

Duwig, Christophe LU and Gutmark, Ephraim (2008) In Physics of Fluids 20(4). p.4-041705
Abstract
The flow dynamics of a multiple jet combustor is investigated using large eddy simulation. This particular combustor geometry is designed to mix hot combustion products from a central recirculation zone into the surrounding fuel/air jets. Using proper orthogonal decomposition, a large scale rotation of the central recirculation zone around the combustor axis was identified, though the averaged flow field does not exhibit any azimuthal motion. The rotating mode was found to have a relatively low frequency and to contain about 10% of the total turbulent kinetic energy. The occurrence of this mode was explained using the nonlinear delay saturation model.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physics of Fluids
volume
20
issue
4
pages
4 - 041705
publisher
American Institute of Physics
external identifiers
  • wos:000255456600023
  • scopus:43149085548
ISSN
1070-6631
DOI
10.1063/1.2904992
language
English
LU publication?
yes
id
a781f265-a93b-4802-829a-abca64dd8147 (old id 1205035)
date added to LUP
2008-09-18 13:11:32
date last changed
2017-01-01 05:13:25
@article{a781f265-a93b-4802-829a-abca64dd8147,
  abstract     = {The flow dynamics of a multiple jet combustor is investigated using large eddy simulation. This particular combustor geometry is designed to mix hot combustion products from a central recirculation zone into the surrounding fuel/air jets. Using proper orthogonal decomposition, a large scale rotation of the central recirculation zone around the combustor axis was identified, though the averaged flow field does not exhibit any azimuthal motion. The rotating mode was found to have a relatively low frequency and to contain about 10% of the total turbulent kinetic energy. The occurrence of this mode was explained using the nonlinear delay saturation model.},
  author       = {Duwig, Christophe and Gutmark, Ephraim},
  issn         = {1070-6631},
  language     = {eng},
  number       = {4},
  pages        = {4--041705},
  publisher    = {American Institute of Physics},
  series       = {Physics of Fluids},
  title        = {Large scale rotating motions in a multiple jets combustor},
  url          = {http://dx.doi.org/10.1063/1.2904992},
  volume       = {20},
  year         = {2008},
}