Combined multifluid‐population balance method for polydisperse multiphase flows

Abstract

In the present work we analyse applicability of the adaptive multiple size-group (A-MuSiG) population balance method to modelling of multiphase flows. The dispersed phase is split into M size-groups, each one having its own mass- and momentum balance. An additional equation for the number density makes the method adaptive, that is, the groups sizes are not prescribed a priory, but calculated. A special attention is paid to the effect of the turbulent diffusion on size distribution. The method is implemented in the multiphase CFD code STAR-CCM+ of Siemens PLM Software.