Reduced modeling of Flame-Wall-Interactions of premixed isooctane-air systems including detailed transport and surface reactions

the Reaction-Diffusion Manifold (REDIM) method, a method for model reduction, was applied to a premixed isooctane-air system with Flame-Wall-Interactions. A detailed model for the diffusive processes was applied to achieve a highly accurate reduced kinetic model and complex boundary conditions that account for heterogeneous wall reactions were implemented. The REDIM was constructed and validated by comparing results of detailed and reduced kinetics in the system state space. The results of the reduced computations were compared with those of the detailed computations. The reduced kinetics reproduced the results of the FWI very accurately. In particular, the difference between detailed kinetics with and without wall reactions is larger than the difference between detailed and reduced kinetics with heterogeneous wall reactions, which demonstrated the quality of the model reduction.