Learning Forum

[Rob]

Have a very careful look at what the various models do, and how they interact. 

I'd use DEM to calculate building up the particle bed. But even with the new Rocky SPH model(s) you'd struggle to handle wetting at the resolution you're wanting: that may need Fluent's VOF model which doesn't work with the Rocky DEM particles. There's also the level of mesh refinement needed to capture the bed AND particles at 10microns AND their roughness AND the film thickness AND gaps. 

This is not an easy simulation so please review the project goals relative to how much time (and training) you have.