SIMULATION OF THE AERODYNAMICS OF A SWIRLING TURBULENT FLOW AND OF THE PROCESS OF CLASSIFICATION OF PARTICLES IN A VORTEX CHAMBER

A numerical study of the aerodynamics of a swirling turbulent fl ow and of the classifi cation of particles in the vortex chamber of a pneumatic combined apparatus has been performed. The obtained results indicate the possibility of achieving a uniform distribution of the radial fl ow velocity along the height of the chamber in the particle separation zone in it by changing the shape of the rotor blades of the apparatus, which is a prerequisite for its effi cient operation. The trajectories of motion of single particles in the vortex chamber are determined. A signifi cant eff ect of turbulent fl ow pulsations on the effi ciency of particle separation in it has been established. The reliability of the obtained results is confi rmed by test studies and by their comparison with experimental data.
   
Author:  R. R. Turubaev, A. V. Shvab
Keywords:  numerical simulation, turbulence, pressure, aerodynamics, vortex, swirling fl ow, stream function, Wilcox model.
Page:  1230