Technical Paper
Comparison of Primary Sensitive Reactions on Fuel Reactivity between Detailed and Skeletal Mechanisms of Gasoline Surrogate
2018-09-10
2018-01-1737
Combustion simulation is of great importance for internal combustion engine development. With the advance of fundamental combustion experiments and theoretical computation, detailed combustion mechanisms of gasoline surrogates have been enhanced with introduction of new reactions and updated reaction rate constants recently. However, detailed combustion mechanisms with tens of thousands of reactions are still not practical for engineering use in view of massive computation cost. As a practical alternative, skeletal mechanisms are usually developed to couple with three dimensional engine combustion simulations. As for skeletal mechanisms, rate constants of some important reactions have to be tuned to reproduce the experimental data due to the omission of intermediate reaction steps, thus are different from those applied in detailed mechanisms.