Effect of the Variation of the Mixing Coefficient on a Turbulent Confined Flame (CH4/Air).

Guessab Ahmed, Guessab; Abdelkader, Aris; Helal, F. Tabet; GӦkalp, Iskander

Communication science et technologie
Volume 11, Numéro 2, Pages 01-08
2013-07-01

Effect Of The Variation Of The Mixing Coefficient On A Turbulent Confined Flame (ch4/air).

Auteurs : Guessab Ahmed Guessab . Abdelkader Aris . Helal F. Tabet . Gӧkalp Iskander .

Résumé

Abstract. In combustion computational analysis, reduced mechanisms are often used in place of detailed kinetic chemistry. In this study we employed ANSYS Fluent Computational Fluid Dynamics (CFD) package, to analyze methane oxidation mechanism in a coaxial burner. The k - scheme was used to model the effects of turbulence. The reaction kinetics employed in this study is that based on the work of Jones and Lindstedt [14]. This simplified model consists of 4chemical reactions and 7 species, namely, CH4, CO2, CO, H2O, O2, H2 and N2. The focus is on assessing the performance of the Eddy Dissipation Model (EDM) in combination with two-equation turbulence models (k-) and chemical kinetics schemes by comparing predictions with experimental measurements.