ABSTRACT
A laminar premixed CH4-Air flame is analyzed with tools from the Computational Singular Perturbation method. It is shown that in the flame zone, transport has no influence in the directions in the phase space, along which act the fastest chemical time scales. Diffusion starts becoming important in the directions along which act the intermediate chemical time scales, while along the slowest directions both diffusion and convection dominate. It is also demonstrated that the stoichiometry of the mixture has no significant effect in the dynamics along the fastest chemical directions, influencing the slow ones, along which chemistry interacts with transport. The analysis presented here is based on numerical CSP data. The ease in their interpretation makes CSP a well suited tool for the study of complex and unexplored chemical mechanisms.
