چكيده به لاتين
In present work, CFD simulation and experimental study of turbulent flow in new gas-particle helical separator to obtain the hydrodynamic behavior and its pressure drop has been studied. The Reynolds Stress Model (RSM) has been used as an optimize turbulent model for its accuracy also, Eulerian-Eulerian multiphase approach. Furthermore, QUICK method has been used for discretizing of convective momentum terms. In order to coupling the momentum and continuity equation PISO method has been implemented. To validate the results of simulation, appropriate experimental setup has been designed and built. Comparison between simulation and experimental efficiency and pressure drop results have been shown good and acceptable agreement. Finally influence of inlet velocity, inlet particle loads and particle sizes on cyclone performance and its pressure drop has been studied. results show that with increasing particle size and inlet air flow rate increase separation efficiency, but increasing inlet air flow not always a positive effect on efficiency. Pressure drop also increases the air flow and particle load, pressure drop compared to the increasing amount of particles increases. In this study, a comparison between this type of separator, cyclone separator was performed with the results of the separation efficiency and pressure drop is less than the cyclone separator.
Keywords: Helical Separator, Computational Fluid Dynamics (CFD), Reynolds Stress Model (RSM), multiphase flow.
