Flow, Turbulence and Combustion

, Volume 82, Issue 4, pp 537–551

Modelling of a Premixed Swirl-stabilized Flame Using a Turbulent Flame Speed Closure Model in LES

Article

DOI: 10.1007/s10494-008-9175-x

Cite this article as:
Zhang, F., Habisreuther, P., Hettel, M. et al. Flow Turbulence Combust (2009) 82: 537. doi:10.1007/s10494-008-9175-x

Abstract

This paper proposes a combustion model based on a turbulent flame speed closure (TFC) technique for large eddy simulation (LES) of premixed flames. The model was originally developed for the RANS (Reynolds Averaged Navier Stokes equations) approach and was extended here to LES. The turbulent quantities needed for calculation of the turbulent flame speed are obtained at the sub grid level. This model was at first experienced via an test case and then applied to a typical industrial combustor with a swirl stabilized flame. The paper shows that the model is easy to apply and that the results are promising. Even typical frequencies of arising combustion instabilities can be captured. But, the use of compressible LES may also lead to unphysical pressure waves which have their origin in the numerical treatment of the boundary conditions.

Keywords

Large eddy simulation Combustion modelling Swirl burner Turbulent flame speed 

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • F. Zhang
    • 1
  • P. Habisreuther
    • 1
  • M. Hettel
    • 1
  • H. Bockhorn
    • 1
  1. 1.University of KarlsruheKarlsruheGermany

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