Studium proudění oceli ponornou výlevkou

Abstract

This diploma thesis deals with the investigation of the influence of the submerged entry nozzle (SEN) design on the steel flow. In the theoretical part, the continuous casting process and its individual sections are described. The work deals in more detail with the description of possible modifications of SENs and their technological consequences. Special attention is given to the group of so-called Swirling SENs, which enable the steel melt to rotate similarly to electromagnetic stirrers. In the experimental part, the effect of three swirling SENs design on the flow of steel in mould with a cross-section of 180x180 mm and Ø400 mm was investigated using numerical simulations. In parallel with swirling SENs, the effects of commonly used SENs were also simulated. After performing the numerical simulations, the visual results were evaluated. Moreover, the results were refined using data and graphs. From this analysis, it can be concluded that the VPV2 proposal achieves the best results for both formats.