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Computational Investigation of a Swirled Premixed Burner Using Hybrid RANS-LES Method

Authors :
Iskender Gökalp
Zakaria Mansouri
Mokhtar Aouissi
Toufik Boushaki
Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE)
Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut des Sciences de l'Ingénierie et des Systèmes (INSIS)
Université Amar Telidji - Laghouat
ANR-11-LABX-0006,CAPRYSSES,Cinétique chimique et Aérothermodynamique pour des Propulsions et des Systèmes Energétiques Propres(2011)
Source :
Progress in Hybrid RANS-LES Modelling, Progress in Hybrid RANS-LES Modelling, pp.243-254, 2018, 978-3-319-70031-1. ⟨10.1007/978-3-319-70031-1_20⟩, Progress in Hybrid RANS-LES Modelling ISBN: 9783319700304
Publication Year :
2018
Publisher :
HAL CCSD, 2018.

Abstract

International audience; High turbulent swirling reacting flow is investigated in a swirled premixed burner using hybrid RANS-LES method. The hybrid method is the Detached Eddy Simulation (DES) and it is combined with the Finite-Rate/Eddy Dissipation (FR/EDM) combustion model to treat turbulence-chemistry interaction. The instantaneous flow fields are well captured by DES and the premixed flame is well reproduced by FR/EDM. It is shown that DES is capable to reproduce the experimental profiles of the mean axial velocity and temperature. Phase-angle analysis of the instantaneous flow field shows the presence of large-scale coherent structures. Q-criterion is used to visualize the 3D behaviour of the structures; it is found that the unsteady flow contains a Precessing Vortex Core (PVC) and Secondary Outer Vortex (SOV).

Subjects

Subjects :
Premixed flame
Materials science
Turbulence
RANS-LES Method
020209 energy
[SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment
Flow (psychology)
02 engineering and technology
Mechanics
Dissipation
7. Clean energy
DES
Turbulent swirling flow
Vortex
Physics::Fluid Dynamics
020303 mechanical engineering & transports
0203 mechanical engineering
0202 electrical engineering, electronic engineering, information engineering
Combustor
Detached eddy simulation
Physics::Chemical Physics
Reynolds-averaged Navier–Stokes equations

Details

Language :
English
ISBN :
978-3-319-70031-1
978-3-319-70030-4
ISBNs :
9783319700311 and 9783319700304
Database :
OpenAIRE
Journal :
Progress in Hybrid RANS-LES Modelling, Progress in Hybrid RANS-LES Modelling, pp.243-254, 2018, 978-3-319-70031-1. ⟨10.1007/978-3-319-70031-1_20⟩, Progress in Hybrid RANS-LES Modelling ISBN: 9783319700304
Accession number :
edsair.doi.dedup.....66c24ede8deef4fa02aa7c3b7d3fab89
Full Text :
https://doi.org/10.1007/978-3-319-70031-1_20⟩
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