Simplified Reaction Mechanisms for the Oxidation of Jet Fuel

Jet fuel is a complex mixture comprising thousands of components, which poses challenges for conducting kinetic simulations on its oxidation process. To address this issue, the HyChem (hybrid chemistry) approach has recently been proposed as an effective method for modeling the oxidation of real multicomponent fuels. Nevertheless, the simplest HyChem approach still involves 31 species and more than 100 reactions, presenting a significant challenge for computational fluid dynamics (CFD) simulations of real multicomponent fuels. In order to enhance the computational efficiency and affordability of numerical simulations for reactive flow, this study developed three simplified mechanisms, namely S66 (28 species and 66 reactions), S8 (12 species and 8 reactions), and S2 (5 species and 2 reactions), which depict the high-temperature (T = 1000～1470 K), high-pressure (P > 1.0 atm), and fuel-lean (φ