The particles tracking is a typically unsteady calculous.
In the Define menu choose Model and Solver...  and set the options like shown on the image below :

The first thing to do is calculate the turbulent flow of the continuous phase. For the Lagragian tracking of the inclusions, the the turbulence model should be Large Eddy Simulation (Les). In the Define menu choose Model and Viscous...  and set the options like shown on the image below :

The next step is to set the material of the continuous phase, the boundary conditions etc... And to iterate until the flow is satbilisated (the LES calculation can't be steady !).
When the calculated flow is steady, it's time to define the Discrete Phase Model, in the Define menu choose Model and Discrete Phase...  and set the options like shown on the image below :