MODELLING STUDY OF JET- METAL INTERACTION IN LD PROCESS

Abstract

Water model experiments have been carried out in a 1/30 th scaled down model of the 100 ton LD converter in o rder to investigate the effect of changing the lance height and the gas flo w rate on the penetration depth of liquid with diff erent exit diameters. It is found the penetration depth increases with decreasing nozzle diameter, decreasing the lance height and with incr ease the gas flow rate. Gas jets impinging onto a gas‐liquid interface of a liquid pool are also studied using computational f luid dynamics modeling, which aims to obtain a better understanding of the behavi or of the gas jets. The gas and liquid flows are mo deled using the volume of fluid technique. The governing equations in the axisymmet ric cylindrical coordinates are solved by the CFD susing FLUENT. The computed results are compared with experimental result and it isfound a good match with all the da ta.