Swirling stability of fluid at high velocity flow in pipe: article

This paper investigate the performance and flow of fluid inside a cyclone. A cyclone present a complex flow structure which gave different prediction depends on geometry and flow velocity. A numerical simulation is performed to simulate the flow of fluid. A three-dimension simulation of single phase fluid within cyclone has been carried out using Computational Fluid Dynamics (CFD) with FLUENT software. The solver predictions using k-ε model to predict the turbulent flow inside the cyclone. Patterns of flow in every parts of cyclone are observed in order to identify the performance of separation process. Comparisons between sweep surfaces are made based on vectors and streamlines. Velocity profile and swirling stability at the vortex core is observed. High velocity fluid as an inlet stream which is 10 m/s caused the forced vortex at the center of cyclone bigger in shape. It can be shown that high velocity region mostly occurred at the wall of cyclone and cone chamber experienced low velocity region