A FLUID-DYNAMICAL LOWER DENSITY SIMULATION TEST FOR LD CONVERTER

Applying the similarity theory based upon the behaviour of the supersonicoxygen jet of 2.12 and 1.465 Mach respectively and upon its interaction withthe bath, certain simulation tests for 50-ton LD converter have been carried out. Incase of geometry and boundary condition similarities, a new test, the so called"lower density simulation", has been proposed to realize not only the jet dynam-ics but also its interaction with bath. In all, five tests simulating the jet dynam-ics behaviour under various conditions, its interaction with bath, the inlluenceof fluid dynamics on rate of carburization in bath, etc. were conducted. The rel-iability of such lower density simulation tests for LD converter was subjected totheoretical analysis and further verified by experimental results obtained by NACA.