Large scale rotating motions in a multiple jets combustor
(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:
https://lup.lub.lu.se/record/1205035
- author
- Duwig, Christophe LU and Gutmark, Ephraim
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics of Fluids
- volume
- 20
- issue
- 4
- pages
- 4 - 041705
- publisher
- American Institute of Physics (AIP)
- 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
- 2016-04-01 12:31:44
- date last changed
- 2022-02-11 08:15:07
@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 (AIP)}},
series = {{Physics of Fluids}},
title = {{Large scale rotating motions in a multiple jets combustor}},
url = {{http://dx.doi.org/10.1063/1.2904992}},
doi = {{10.1063/1.2904992}},
volume = {{20}},
year = {{2008}},
}