A high order moment method for the simulation of polydisperse two-phase flows

Abstract

In this work, we are interested in the modeling of spray polydispersion in size as well as size–velocity correlations, which may greatly influence the evaporation and the dynamics of the disperse phase. Vié et al. (2011) proposed a new model called Coupled Size–Velocity Moment method (CSVM), which handles the polydispersion using the NDF reconstruction proposed in Kah et al. (2011) for size distribution, a velocity reconstruction and adapted numerical methods for moment evolution. Here, the CSVM is evaluated in a frozen homogeneous isotropic turbulence. Results shows the ability of the method to capture the statistical information of a turbulent flow with a minimal number of moments. As soon as a numerical scheme for unstructured grid is provided, the CSVM would be an interesting approach for complex simulations in industrial codes.