Numerical Simulation On Two Inlet Structure of Hydrocyclone

摘要

The influence of inlet structure which is the tangent and Spiral on water-coal separation in a Hydrocyclone is simulated by CFD in this paper. Mixture model in fluent and the RNG K- ε turbulent model are adopted using numerical simulation by FLUENT software. The pressure gradient term is calculated by STANDARD discrete numerical method, and a second order upwind scheme is applied as discrete form for the rest of terms; the SFMPLE algorithm is adopted to deal with the pressure-velocity coupling. The fluent of the two inlet structure on the inner fluid of the hydrocyclone is obtained. It can be concluded that in actual applications, separation efficiency of the hydrocyclone with spiral inlet the entrance is higher, separation effect is better. The numerical simulation can provide a foundation for structural optimization design of hydrocyclone.