Near wall combustion modeling in spark ignition engines. Part B: Post-flame reactions

0D modeling aspects of flame stretch in spark ignition engines and comparison with experimental results

“…This study finally demonstrates the importance of taking stretch into account, especially curvature in the laminar flame speed formulation, to better predict the burnt mass fraction. With such a 6 modification, the overall model is not only able to satisfactorily predict the end of the combustion phase as developed in previous studies [30,31] but it is also relevant for the early flame propagation phases when flame stretch is high. It is thus a powerful tool for predicting the performances of a new SI engine design with different kinds of fuel and in a wide range of conditions.…”

“…A more detailed discussion about the implementation of this combustion model and the reasons for its selection in this work can be found in [28]. This model was also enhanced for near wall combustion phenomena [30,31]. However, this modeling was omitted in the present study, since those phenomena are weak during the first combustion stage.…”