Large eddy simulation of a H-2/N-2 lifted flame in a vitiated co-flow
(2008) In Combustion Science and Technology 180(3). p.453-480- Abstract
- A lifted turbulent H-2/N-2 flame in a vitiated co-flow is studied using Large Eddy Simulation together with a closure based on perfectly stirred reactors. A part of the closure, chemical look-up tables, are generated to close the filtered temperature equations and to compute local radical concentrations throughout the computational domain. The approach has been used to simulate a lifted turbulent flame. The results have been found to be insensitive to the combustion model employed and to the grid resolution. However, the results are very sensitive to the temperature of the co-flow stream and this result is well in line with previous findings. The numerical predictions were further compared to detailed experimental data obtained by Cabra et... (More)
- A lifted turbulent H-2/N-2 flame in a vitiated co-flow is studied using Large Eddy Simulation together with a closure based on perfectly stirred reactors. A part of the closure, chemical look-up tables, are generated to close the filtered temperature equations and to compute local radical concentrations throughout the computational domain. The approach has been used to simulate a lifted turbulent flame. The results have been found to be insensitive to the combustion model employed and to the grid resolution. However, the results are very sensitive to the temperature of the co-flow stream and this result is well in line with previous findings. The numerical predictions were further compared to detailed experimental data obtained by Cabra et al. (2002). The agreement between the two sets of data is very good, indicating that the present approach predicts successfully the combustion process including the OH mass fractions. Finally, the LES data were used to study the flame dynamics and stabilization mechanisms. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1199172
- author
- Duwig, Christophe LU and Fuchs, Laszlo LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- turbulent combustion, decomposition, proper orthogonal, non-premixed flames, large eddy simulation, lift-off
- in
- Combustion Science and Technology
- volume
- 180
- issue
- 3
- pages
- 453 - 480
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000252582900004
- scopus:38649139842
- ISSN
- 1563-521X
- DOI
- 10.1080/00102200701741327
- language
- English
- LU publication?
- yes
- id
- 6309bb71-da63-4c3d-9e9a-52e56faa01da (old id 1199172)
- date added to LUP
- 2016-04-01 11:35:52
- date last changed
- 2022-01-26 07:26:16
@article{6309bb71-da63-4c3d-9e9a-52e56faa01da,
abstract = {{A lifted turbulent H-2/N-2 flame in a vitiated co-flow is studied using Large Eddy Simulation together with a closure based on perfectly stirred reactors. A part of the closure, chemical look-up tables, are generated to close the filtered temperature equations and to compute local radical concentrations throughout the computational domain. The approach has been used to simulate a lifted turbulent flame. The results have been found to be insensitive to the combustion model employed and to the grid resolution. However, the results are very sensitive to the temperature of the co-flow stream and this result is well in line with previous findings. The numerical predictions were further compared to detailed experimental data obtained by Cabra et al. (2002). The agreement between the two sets of data is very good, indicating that the present approach predicts successfully the combustion process including the OH mass fractions. Finally, the LES data were used to study the flame dynamics and stabilization mechanisms.}},
author = {{Duwig, Christophe and Fuchs, Laszlo}},
issn = {{1563-521X}},
keywords = {{turbulent combustion; decomposition; proper orthogonal; non-premixed flames; large eddy simulation; lift-off}},
language = {{eng}},
number = {{3}},
pages = {{453--480}},
publisher = {{Taylor & Francis}},
series = {{Combustion Science and Technology}},
title = {{Large eddy simulation of a H-2/N-2 lifted flame in a vitiated co-flow}},
url = {{http://dx.doi.org/10.1080/00102200701741327}},
doi = {{10.1080/00102200701741327}},
volume = {{180}},
year = {{2008}},
}