Simulation of turbulent piloted methane non-premixed flame based on combination of finite-rate/eddy-dissipation model

• Published in: Mechanika (Kaunas, Lithuania : 1995) Vol. 19; no. 6; pp. 657 - 664
• Main Authors: Guessab, A., Aris, A., Bounif, A.
• Format: Journal Article
• Language: English
• Published: 01.01.2013
• Subjects: Axisymmetric; Combustion; Computational fluid dynamics; Computer simulation; Mathematical models; Methane; Solvers; Turbulence
• ISSN: 1392-1207; 2029-6983
• DOI: 10.5755/j01.mech.19.6.6000

Two chemical kinetic mechanisms of methane combustion were tested and compared using a piloted axisymmetric turbulent non-premixed flame: 1-step and 4-step mechanism, to predict the temperature and species distributions. The numerical results are presented and compared with the experimental data. A 4-step methane mechanism was successfully implanted into CFD solver Fluent. The numerical solution is in very good agreement with previous numeral of 4-step mechanism and the experimental data.Original Abstract: Naudojant valdoma simetrine turbulentine nesumaisyta liepsna buvo testuojami ir lyginami du metano degimo cheminiai kinetiniai mechanizmai: 1-ojo zingsnio (pagal Westbrooka ir Dryeri) ir 4-ojo zingsnio (pagal Jonesa ir Lindstedta) temperaturos ir molekuliu rusies pasiskirstymas. Skaiciavimo rezultatai palyginti su eksperimentiniais. 4-ojo zingsnio metano degimo mechanizmas buvo sekmingai idiegtas i skaitmenine skyscio dinamikos programa Fluent. Skaitmeninis sprendinys gerai dera su 4-ojo zingsnio degimo mechanizmo eksperimentiniais rezultatais.