Experimental Study And Advances In 3-d Simulation Of Gas Flow In A Cyclone Using Cfd

Experimental results and a 3-D simulation of gas flow in a cyclone are presented in this work. Inlet gas velocities of 11.0 m/s and 12.5 m/s and measurements of local pressures were used to determine radial distributions of the tangenital velocity component at five axial positions throughout the equipment. The aim of this work was to analyze an anisotropic turbulence model, the Differential Stress Model (DSM). First and higher order interpolation schemes and a numerical strategy were used to assure stability and convergence of the numerical solutions carried out using the computational fluid-dynamics code CFX 4.4. The models showed a satisfactory capability to predict fluid dynamics behavior since the calculated distribution of velocity components match the experimental results very well. © 2002 Elsevier B.V. All rights reserved.10C943948(2001) Guidelines of CFX 4.4 User Guide, , AEA TechnologyLauder, D.E., Reece, G.J., Rodi, W., Progress in the Development of a Reynolds-Stress Turbulence Closure (1975) J. Fluid Mech., 68, pp. 537-566Maliska, C., (1995) Transferência de Calor e Mecânica dos Fluidos Computacional, , 424p, LTC Editora, Rio de Janeiro, BrasilMeier, H.F., Mori, M., Anisotropic Behavior of the Reynolds Stress in Gas and Gas-Solid Flows in Cyclones (1999) Powder Technology, 101, pp. 108-119Meier, H.F., Kasper, F.S., Peres, A.P., Huziwara, W.K., Mori, M., Comparison Between Turbulence Models for 3-D Turbulent Flows in Cyclones (2000) Proceedings of XXI CILAMCE, , 18p. Rio de Janeiro, BrasilWitt, P.J., Mittoni, L.J., Wu, J., Shepherd, I.C., Validation of a CFD Model for Predicting Gas Flow in a Cyclone (1999) Proceedings of CHEMECA99, , Australi