Abstract
Although flame spread over liquid fuel has been extensively investigated, there still exist some unresolved issues on its controlling mechanisms. In addition, state-of-art models have not addressed all the potentially important processes such as detailed chemistry, limiting the prediction accuracy. In the present study, our previously developed fully coupled three-dimensional numerical approach is extended with a multi-step chemistry. The improved model is then used to investigate flame spreads under different fuel temperatures and pool depths, aiming to reveal fine details of the underlying gas and liquid flow features.