A Review on SOM-LES of Turbulent Two-Phase Combustion

Turbulent two-phase combustion is widely encountered in spray and pulverized-coal combustors, and large-eddy simulation (LES) becomes a powerful CFD method for its simulation, because LES can give unsteady flame structures and more reasonable statistical results than Reynolds-averaged modeling. Present combustion models in LES either lack of generality or are computationally too expensive. A statistical moment model based on the idea of turbulence modeling called “second-order moment (SOM) combustion model” was developed by the present authors for LES of two-phase combustion. In this paper, a review is given on our published research results for SOM-LES of two-phase combustion, including the description of the SOM-LES model, its application, validation of statistical results by experiments, as well as the phenomena obtained by instantaneous results.