[sujay]

Dear Friends,

I want to inject particles into the water tank and want to check how many are going out of the water tank through the outlet and how many are floated to top surface (Transient case) . Theses particles are continuously entering through the inlet pipe (along with water). These particles are slightly lighter than water.

Materiel used are Water as Fluid and Particles as Dispersed Solid.

Problem associated are
1) Particle material properties : only density of particle is asked while creating material . Do i need to add any other property ?

2) Modelling of drag force: with default Cd = 0.44 all particles are floated to top surface.

Actually some particles are expected to leave tank through outlet along with water (~ 25 %) depending on the particle size.

How to simulate this in CFX.

Thank You,
Sujay