Progress in supersonic spray combustion modeling

This paper represents a limited review of available studies on supersonic spray combustion (SSC), for which there is not a lot that have addressed the various aspects of the real problem, which include drop breakup, drop evaporation, the role of shock waves, turbulence, potentially complicated drag laws when the point-particle method is used, and combustion. A few previous studies representing the modes of drop breakup and shattering by shockwaves are presented in this paper, including a few analyses by others on this phenomenon. At present, most of the models are from empirical studies. There have been a few studies, mostly exploratory, by the author, and a handful of CFD-based simulations of the SSC problem, but these incidentally have not addressed the complexities in the real problem. There are a few studies on aeration, as in barbotage and water spray quenching of fire. However, the drops in this case are not fuels, and so do not undergo combustion. A more detailed version of this review is underway.