Hydrocyclones are getting more and more interest from various industries. They are widely used to separate particles from liquid. Modeling of complex and multiphase flow behavior inside the hydrocyclone is done usually with the help of computational fluid dynamic study. Current study involves numerical investigation of separation performance characteristics of the hydrocyclone using new design parameters. The Reynolds averaged Navier-Stokes equation employing k-e turbulence model were solved to calculate the turbulent flow field in a hydrocyclone. The particle trajectories were computed by integrating the force balance equations on particles based on the predicted flow field. The separation efficiency defined as the fraction of particles recovered to underflow was obtained by using the calculated particle trajectories.
