Computational and experimental investigations in a cyclone dust separator

摘要

Three-dimensional turbulent flow in a model cyclone has been simulated using PHOENICS code and experimental studies carried out using a laser Doppler anemometry (LDA) system. The experimental results were used to validate the computed velocitydistributions based on the standard and a modified κ-ε model. The standard κ-ε model was found to be unsatisfactory for the prediction of the flow field inside the cyclone chamber. By considering the strong swirling flow and the streamlined curvature, aκ-εmodel, modified to take account of the Richardson number, provided better velocity distributions and better agreement with the experimental results.