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Influence of Flow Swirling on the Aerothermodynamic Behaviour of Flames

Parra-Santos, M. T.; Mendoza-Garcia, V.; Szász, Robert-Zoltán LU ; Gutkowski, A. N. and Castro-Ruiz, F. (2015) In Combustion, Explosion, and Shock Waves 51(4). p.424-430
Abstract
The present work focuses on the numerical simulation of diffusive flames in a confined high-swirl burner. Navier-Stokes equations expressed for a time-dependent, compressible, and three-dimensional flow with finite-rate kinetics are solved for lean methane/air mixtures. A simplified mechanism is used to model the combustion. Non-reactive and reactive cases are contrasted for a swirl number of 0.95. Three flames for swirl numbers of 0, 0.6, and 0.95 are analyzed. In swirling flows, the inner recirculation zone is mainly composed of reaction products, which help in ignition of the incoming fuel. Moreover, the forward stagnation point plays an important role, leading to an azimuthal deflection of the flame front.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
reactive flow, recirculation zone, CFD, swirling flows, stretched flames
in
Combustion, Explosion, and Shock Waves
volume
51
issue
4
pages
424 - 430
publisher
Pleiades Publishing
external identifiers
  • wos:000363262800004
  • scopus:84941952726
ISSN
0010-5082
DOI
10.1134/S0010508215040048
language
English
LU publication?
yes
id
1153a240-eead-44e7-a4ea-0b28bea5047e (old id 8201621)
date added to LUP
2015-11-26 12:15:25
date last changed
2017-07-23 04:11:52
@article{1153a240-eead-44e7-a4ea-0b28bea5047e,
  abstract     = {The present work focuses on the numerical simulation of diffusive flames in a confined high-swirl burner. Navier-Stokes equations expressed for a time-dependent, compressible, and three-dimensional flow with finite-rate kinetics are solved for lean methane/air mixtures. A simplified mechanism is used to model the combustion. Non-reactive and reactive cases are contrasted for a swirl number of 0.95. Three flames for swirl numbers of 0, 0.6, and 0.95 are analyzed. In swirling flows, the inner recirculation zone is mainly composed of reaction products, which help in ignition of the incoming fuel. Moreover, the forward stagnation point plays an important role, leading to an azimuthal deflection of the flame front.},
  author       = {Parra-Santos, M. T. and Mendoza-Garcia, V. and Szász, Robert-Zoltán and Gutkowski, A. N. and Castro-Ruiz, F.},
  issn         = {0010-5082},
  keyword      = {reactive flow,recirculation zone,CFD,swirling flows,stretched flames},
  language     = {eng},
  number       = {4},
  pages        = {424--430},
  publisher    = {Pleiades Publishing},
  series       = {Combustion, Explosion, and Shock Waves},
  title        = {Influence of Flow Swirling on the Aerothermodynamic Behaviour of Flames},
  url          = {http://dx.doi.org/10.1134/S0010508215040048},
  volume       = {51},
  year         = {2015},
}