CFD Analysis of a Cyclone Seperator

This work deals with the application of Computational Fluid Dynamics (CFD) for cyclone modeling on three-dimensional unstructured mesh using the Reynolds Stress turbulence model, a standard k-ε or a k-�‰ model and Large Eddy simulation. Large-eddy simulations (LES) is performed on the gas flow in a cyclone at Re = 280,000. Numerical analysis of flow characteristics and separation efficiency in a high-efficiency cyclone is carried out. The model is only estimated the cyclone's performance under the limited environments; it is difficult to obtain a general model for all the types of cyclones. The purpose of this study is to find out the flow characteristics and separation efficiency numerically using ANSYS Fluent software. The Reynolds stress model (RSM), standard k-ε model and Large Eddy simulations are used in this work to know the flow separation characteristics. The models represent the 3-D, time-dependent flow analysis. CFD velocity profiles, and pressure drops for all the time-dependent flows are compared and discussed. Some details of the flow in the relatively small region in the vicinity of the inlet have strong influence on the separation process is checked with the simulations. The cyclone flow field pattern is simulated and analyzed with the aid of velocity components and static pressure contour plots.