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Commercial fluidization technologies can benefit from a deeper understanding of the interplay between the dynamics of the fluids and solids in these multiphase processes. Dispersed-phase and particulate systems, such as precipitation, crystallization, particle formation in aerosols and fluidization, can be modeled using the Population Balance Equation (PBE) approach to describe different particle properties.
In our research, we have implemented this PBE approach into our High Performance Computing (HPC) STAR-CCM+ simulations. In particular, we are using the Direct Quadrature Method of Moments (DQMOM) to represent the main characteristics of particle distribution, such as particle size, volume fraction, interaction between particles, etc. The use of turbulence models with the advantage of HPC is desirable in order to improve the resolution of the multiphase flows and thus improve the current level of understanding. In this presentation, we discuss applications of the Direct Quadrature Method of Moments (DQMOM) implementation in STAR-CCM+ for gas-liquid and gas-solid flows. We also show qualitative results for the evolution of the particle size distribution and the particle volume fraction.