Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6478055 | Proceedings of the Combustion Institute | 2017 | 7 Pages |
The focus of this study is the development of a robust and accurate algorithm for model reduction of chemical kinetics for near wall reacting flows. The so-called Reaction-Diffusion Manifold (REDIM) method is employed for this purpose. 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. Omitting the latter still leaves the task to find a reduced description, that is valid not only for flames experiencing heat loss in a stationary burning regime, but also in a transient regime, where flame quenching occurs. It is shown that the REDIM method is capable to account for these processes. The application of the approach is illustrated by the methane/air combustion system in a simple geometry with a cold inert wall, but with a detailed chemical reaction mechanism.