Advanced

Large Eddy Simulation of Reacting Flows Applied to Bluff Body Stabilized Flames

Fureby, Christer and Möller, Sven-Inge LU (1995) In AIAA Journal 33(12). p.2339-2347
Abstract
The objective of this paper is to present a large eddy simulation model for chemically reacting flows. The large eddy simulation model, founded on a physical model based on modern continuum mechanics, includes a complete treatment of the subgrid stresses and fluxes including both backscatter and diffusion. To investigate the predictive capabilities of the large eddy simulation model, numerical simulations of a configuration corresponding to a rig consisting of a rectilinear channel with a triangular-shaped bluff body have been performed. Both nonreacting and reacting flows have been examined under a variety of operating conditions. This paper focuses on the reacting case, which is characterized as lean and premixed. The simulation results... (More)
The objective of this paper is to present a large eddy simulation model for chemically reacting flows. The large eddy simulation model, founded on a physical model based on modern continuum mechanics, includes a complete treatment of the subgrid stresses and fluxes including both backscatter and diffusion. To investigate the predictive capabilities of the large eddy simulation model, numerical simulations of a configuration corresponding to a rig consisting of a rectilinear channel with a triangular-shaped bluff body have been performed. Both nonreacting and reacting flows have been examined under a variety of operating conditions. This paper focuses on the reacting case, which is characterized as lean and premixed. The simulation results are compared to experimental measurements of temperature, constituent mass fraction, and velocity fields in the test rig. The results indicate that the large eddy simulation technique works well and mimics most of the significant flow features, including the typical unsteady flow structures. The results from the large eddy simulations are furthermore used to investigate the mechanisms responsible for the typical flowfield in a bluff body stabilized flame. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
BACKSCATTER, MECHANISM, FULLY TURBULENT FLUID, COMBUSTION, NOX FORMATION, MODEL
in
AIAA Journal
volume
33
issue
12
pages
2339 - 2347
publisher
American Institute of Aeronautics and Astronautics
external identifiers
  • other:IDS Number: TJ059
  • scopus:0029110672
ISSN
1533-385X
language
English
LU publication?
yes
id
1da4fe87-2069-441d-89ad-6be3272a1439 (old id 1366898)
date added to LUP
2009-03-31 11:17:57
date last changed
2017-06-18 03:30:51
@article{1da4fe87-2069-441d-89ad-6be3272a1439,
  abstract     = {The objective of this paper is to present a large eddy simulation model for chemically reacting flows. The large eddy simulation model, founded on a physical model based on modern continuum mechanics, includes a complete treatment of the subgrid stresses and fluxes including both backscatter and diffusion. To investigate the predictive capabilities of the large eddy simulation model, numerical simulations of a configuration corresponding to a rig consisting of a rectilinear channel with a triangular-shaped bluff body have been performed. Both nonreacting and reacting flows have been examined under a variety of operating conditions. This paper focuses on the reacting case, which is characterized as lean and premixed. The simulation results are compared to experimental measurements of temperature, constituent mass fraction, and velocity fields in the test rig. The results indicate that the large eddy simulation technique works well and mimics most of the significant flow features, including the typical unsteady flow structures. The results from the large eddy simulations are furthermore used to investigate the mechanisms responsible for the typical flowfield in a bluff body stabilized flame.},
  author       = {Fureby, Christer and Möller, Sven-Inge},
  issn         = {1533-385X},
  keyword      = {BACKSCATTER,MECHANISM,FULLY TURBULENT FLUID,COMBUSTION,NOX FORMATION,MODEL},
  language     = {eng},
  number       = {12},
  pages        = {2339--2347},
  publisher    = {American Institute of Aeronautics and Astronautics},
  series       = {AIAA Journal},
  title        = {Large Eddy Simulation of Reacting Flows Applied to Bluff Body Stabilized Flames},
  volume       = {33},
  year         = {1995},
}