Mepal
Subscriber

I use MPM to create particles because of the size of the particles.

According to Ansys Fluent User's Guide (Ref, https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v221/en/flu_ug/flu_ug_models_mpm.html), MPM is used when the total particle volume is significant within the flow domain volume.

I did not use a traditional Lagrangian discrete phase model (DPM and DEM) because it is applied when particle sizes are small enough to be regarded as point masses within a single cell.

In my case, I need to create a real volume of particles inside a domain. That is the main reason why I use an MPM.