THERMAL SCIENCE

International Scientific Journal

M. I. El Khazen

,

Hmaied Benticha

,

F. X. Demoulin

,

A. Jemni

NUMERICAL SIMULATION OF A PREMIXED TURBULENT V-SHAPED FLAME

ABSTRACT
In this paper we simulate a turbulent premixed V-shape flame stabilized on a hot wire. The device used is composed of a vertical combustion chamber where the methane-air mixture is convected upwards with a mean velocity of 4 m/s. The flow was simulated running Fluent 6.3, which numerically solved the stationary Favre-averaged mass balance; Navier-Stokes equations; combustion progress variable, and k-ε equations on a two-dimensional numerical mesh. We model gaseous mixture, ignoring Soret and Dufour effects and radiation heat transfer. The progress variable balance equation was closed using eddy break up model. The results of our simulations allow us to analyze the influence of equivalence ratio and the turbulent intensity on the properties of the flame (velocity, fluctuation, progress variable, thickness of flame).This work gives us an idea on the part which turbulence can play to decrease the risks of extinction and instabilities caused by the lean premixed combustion.
KEYWORDS
premixed turbulent combustion, numerical simulation, V-flame
PAPER SUBMITTED: 2009-01-20
PAPER REVISED: 2009-07-20
PAPER ACCEPTED: 2011-02-11
DOI REFERENCE: https://doi.org/10.2298/TSCI090120012E
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2011, VOLUME 15, ISSUE Issue 2, PAGES [311 - 320]
REFERENCES
  1. Bengtsson, K.U.M., Numerical and Experimental Study of NOx Formation in High-Pressure Lean Premixed Combustion of Methane, Ph.D. Thesis, ETH Zürich, CH, 1998
  2. Corr, R.A., Malte, P.C., Marinov, N.M., Evaluation of NOx Mechanisms for lean, premixed combustion, ASME paper, 1991, pp 91-257 9 of 14
  3. Pavé, D., Contribution to the Study of the Structure of turbulent premixed lean Methane-Air flame, Ph. D. thesis, University of Orleans, FR, 2002
  4. Erard, V., spatial and temporal study of thermal and dynamic fields of unsteady turbulent premixed combustion, Ph. D. thesis, university of Rouen, FR, 1996
  5. Renou, B., contribution to the study of the propagation of a premixed flame in an unsteady turbulent flow. Influence of the Lewis number, Ph. D. thesis, university of Rouen, FR, 1999
  6. Galizzi, C., Escudié, D., Turbulent stratified V-shaped flames: Experimental analysis of the flame front topology, Proceedings of the European Combustion Meeting, 2005
  7. Degardin, O., Effects of Heterogeneities of equivalence ratio on the Local structure of the Turbulent Flames, Ph. D. thesis, INSA of Rouen, FR, 2006
  8. Bell, J. B., Day, M. S., Shepherd, I. G., Johnson, M., Cheng, R. K., Beckner, V. E., Lijewski, M. J., Grcar, J. F., Numerical Simulation of a premixed Turbulent V-flame,19th International colloquium on the Dynamics of Explosions and reactive Systems, Kanagawa, Japan, 2003
  9. Hauguel, R., Vervisch, L., Domingo, P., DNS of premixed turbulent V-flame: coupling spectral and finite difference methods, , Compte-Rendu-Mecanique, 333 (2005), pp 95-102
  10. Robin, V., Mura, A., Champion, M., Degardin, O., Renou, B., Boukhalfa, M., Experimental and numerical analysis of stratified turbulent V-shaped flames, Combustion and Flame, 153 (2008), pp 288-315
  11. Fluent 6.3. User Manual, www.fluent.com
  12. Barrère, M., Prudhomme, R., Fundamental equations of aerothermochemistry, Ed.Masson, FR, 1973
  13. Borghi, R., Destriau M., Combustion and flames, Ed. Technip, FR, 1995
  14. Launder, B.E., Spalding, D.B., Mathematical Models
PDF VERSION [DOWNLOAD]
Numerical simulation of a premixed turbulent V-shaped flame

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence