CFD study of droplet atomisation using a binary nozzle in fluidised bed coating

► Multiphase computational fluid dynamics model was built for fluidised bed coating. ► Gas-solid fluidisation modelled in the Eulerian framework. ► Two-fluid atomisation was described by discrete phase and population balance models. ► Gas-liquid model-predicted spray pattern experimentally verified using UV illumination. ► Population balance modelling proved viable alternative to discrete models.