Numerical modeling of auto-ignition of isolated fuel droplets in microgravity

The model was able to correctly identify the typical auto-ignition regimes of n-alkane oxidation. The comparison with the experimental measurements available in the literature was satisfactory: both first-stage and total induction times were reasonably captured by the numerical simulations. The simulations confirmed that the low-temperature chemistry plays a role of paramount importance in the auto-ignition process. In particular, the competition between low- and high-temperature mechanisms was found to explain the different types of auto-ignition which can be experimentally observed.