REDIM reduced modeling of flame-wall-interactions: Quenching of a premixed methane/air flame at a cold inert wall

Reaction-Diffusion Manifold (REDIM) method was applied to developed a robust and accurate algorithm for model reduction of chemical kinetics for near wall reacting flows. The problem statement represents a fundamental difficulty for manifolds based model reduction concepts since it is necessary to account for flame-wall interactions that perturb the system states by heat loss and catalytic reactions. The REDIM method is capable to account for these processes. The application of the approach is illustrated by the CH₄/air combustion system in a simple geometry with a cold inert wall but with a detailed chemical reaction mechanism.