The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Sven-Inge Möller

Head of research administration

Default user image.

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

Author

  • Christer Fureby
  • Sven-Inge Möller

Summary, in English

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.

Department/s

  • Combustion Physics

Publishing year

1995

Language

English

Pages

2339-2347

Publication/Series

AIAA Journal

Volume

33

Issue

12

Document type

Journal article

Publisher

American Institute of Aeronautics and Astronautics

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • BACKSCATTER
  • MECHANISM
  • FULLY TURBULENT FLUID
  • COMBUSTION
  • NOX FORMATION
  • MODEL

Status

Published

ISBN/ISSN/Other

  • ISSN: 1533-385X
  • IDS Number: TJ059