The Effect of Different Particle Diameters on Waste Submersible Motor-Pump'S Two-Phase Flows

Dispersed turbulence model in Euler model was employed to analyse liquid-solid two-phase flow for a WQ87-28-15 waste submersible motor-pump. The comparisons between the results indicated that the pressure of outlet, the absolute velocity of fluid and the turbulent intensity of vent are in direct proportion to the diameter when the diameter is smaller than 4mm: otherwise, they will go up. The head declined until the diameter of the particle reached 1mm, and efficiency fell while the particle diameter was increasing, but it was fixed and even rose when the diameter was between 1mm to 20mm; It inferred that it has a right area of the diameter when the waste submersible motor-pump operated, and the maximum diameter of particles can be gained.