how to simulate a fluid flow with particles mixed in them??
 

I am a mechanical engineering student. i would like to simulate a flow which has the medium as fluid with small solid particles mixed with them for a research project. This multiphase medium will strike on walls of a cylinder and i need to find its impact on the walls. My friends told me that you have to learn dynamic meshing for this. Since I dont have much knowledge about ansys and have just started working on it, any sort of help would be appreciated.