Discrete Phase Model and pressure gradient
 

Please I am simulating particle transport in horizontal pipe and I am using Discrete Phase Model (DPM) for the simulation. The simulation is solid-water in horizontal pipe with very low concentration of the particle. I tried to determine the pressure gradient of particle-water simulation and compare with the experiment. Please, how can i determine the pressure gradient of the solid-water in ansys cfd fluent?. Thanks. Please i need answer? I I did one simulation, however the the pressure gradient from the simulation is far below the experimental