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Modeling and Simulation of a Turbulent Premixed Methane/Air Flame Based on the G-Equation

[+] Author Affiliations
S. Repp

EADS Airbus GmbH, Hamburg, Germany

A. Sadiki, E. Khiviousk, J. Janicka

Technical University – Darmstadt, Darmstadt, Germany

Paper No. GT2002-30095, pp. 581-590; 10 pages
doi:10.1115/GT2002-30095
From:
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 1: Turbo Expo 2002
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3606-1 | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME

abstract

Using a consistent coupling of the ILDM-method for the chemical kinetics with the G-equation approach for describing the flame front propagation, the kinetic effects in the post-flame region of turbulent premixed flames are investigated. Turbulent flow and mixing fields are described by means of first order moment closures, whilst a multidimensional presumed PDF approach is applied to capture the turbulence-chemistry interaction. Mean scalar quantities of both side of the premixed flame front are calculated based on reaction progress variables conditioned on the G-evolution equation. The model derived, very well applicable to premixed and partially premixed flames, is used to simulate a turbulent premixed methane/air flame. A fair agreement with experimental data for major concentration fields and minor species could be achieved. Apparently, the coupling to the G-equation does not provide more additional accuracy in a case where the consideration of piloting plays a non negligible role.

Copyright © 2002 by ASME

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