2D air flow with 2 types of particles

Hello all, I want to simulate air flow with two types of small wooden particles (wood chips and wood dust) the mesh is easy and I have it, so I want someone who already did the same simulation. My budget is not much ($25) in this first sim that's why I've chosen a simple 2D but for someone with good experience it would be easy. Starting this we shall proceed to some more complicated pneumatic devices with more budget. In the attached PDF file you can see what I expect results to be. Ill send the mesh file later to you.