LONG-TERM LES STUDY OF TURBULENT HEAT AND MASS EXCHANGE IN INDUCTION CHANNEL FURNACES WITH VARIOUS CHANNEL DESIGN

Abstract: Long-term computations for the industrial induction channel furnace (ICF) with different designs of the channel – symmetrical and asymmetrical with one expressly widened branch – have been performed. The turbulent heat and mass exchange in the melt is calculated using a 3D electromagnetic (EM) model and a 3D transient Large Eddy Simulation (LES) approach. Low frequency oscillations of the temperature maximum and its position in the ICF channel are considered. Melt flow patterns in characteristic cross-sections of the channel are presented. Oscillations of instantaneous velocity in near wall region between two oppositely directed time-averaged melt vortices are obtained and qualitative distributions of turbulent kinetic energy for re-circulated flows in different MHD devices are compared. Lagrangian particles tracks and particles clouds distributions after particles injection in ICF bath and channel are considered. 1