Computational Investigation Of Splashing Behaviors In Steelmaking Converter

Splashing plays a key role in the kinetics of the steelmaking converter but not well understood. This work presents a numerical investigation on the generation of the splashing and introduces an evaluation approach for the qualification of the splashing in oxygen steelmaking converter. The generation mechanism of the droplets was explored by multi-fluid VOF simulation and the splashing rate was quantified based on the blowing number theory. The results show that two mechanisms, i.e. the direct ejection of individual droplets and the tearing of so-called "splash sheets" structure, simultaneously occur and attribute to the splashing. Blowing number fluctuates during process due to the oscillating nature of cavity, and an averaged value of 10.0 for blowing number is obtained under the present blowing condition.