Abstract
The aim of this work is to investigate the suitability of various turbulence models in highly complex swirl- ing flows which occur in tangential inlet cyclones. Three dimensional steady governing equations for the incom- pressible, turbulent flow inside the cyclone are solved numerically by using Fluent CFD code, under certain boundary conditions. Different turbulence models and wall functions are tested to get axial and tangential velocity profiles, pressure drop and turbulent quantities. Predicted results are compared with the experimental and numerical values given in the literature. Results obtained from the numerical tests have demonstrated that the key to the success of CFD lies with the accurate description of the turbulent behavior of the flow and the RSM turbulence model performs much better than the other models employed.
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