Evaluation of Chemical Kinetic Mechanisms for Methane Combustion: A Review from a CFD Perspective

Methane is an important fuel for gas turbine and engine combustion, the most common in fundamental combustion studies. As Computational Fluid Dynamics (CFD) modeling of becomes increasingly important, so do chemical kinetic mechanisms methane combustion. Kinetic different complexity exist, aim this study to review commonly used detailed, reduced, global importance CFD In review, procedures relevance model development are outlined. Simulations zero one-dimensional configurations have been performed over a wide range conditions, including addition H2, CO2 H2O, results final recommendation about use mechanisms. The put focus on informed choice mechanism obtain accurate at reasonable computational cost. It shown that flame simulations, reduced with only 42 irreversible reactions gives excellent agreement experimental data, using 5% time as compared widely GRI-Mech 3.0. highly suitable while ignition they tend react too slow, giving longer than expected delay time. For combustible mixtures hydrogen, carbon dioxide, or water, detailed well generally show good performance corresponding simulations pure methane/air mixtures.