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Inclusions in continuously cast steel slabs ‐ numerical model and validation
Author(s) -
Grimm Bernd,
Andrzejewski Peter,
Müller Klaus,
Tacke KarlHermann
Publication year - 1999
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199905661
Subject(s) - nozzle , continuous casting , slab , liquid steel , inclusion (mineral) , caster , casting , meniscus , flow (mathematics) , tundish , shell (structure) , materials science , mechanics , water model , metallurgy , computer simulation , composite material , engineering , mechanical engineering , structural engineering , geology , geometry , chemistry , mineralogy , mathematics , physics , incidence (geometry) , computational chemistry , molecular dynamics
A numerical model for liquid steel flow and inclusion transport and separation in continuous casting moulds is presented, which covers several features simultaneously. The free surface at the meniscus is computed; the submerged entry nozzle is discretised in detail to resolve the outlet geometry; gas injection through the SEN and its effect on liquid steel flow are considered; capture of inclusions within gas bubbles is covered in a simplified approach; the solidifying shell and the process of inclusion entrapment by the growing shell are simulated. Computed flow profiles are compared to experimental results on water and to measurements on liquid steel in a slab caster. Predicted inclusion profiles in solid slabs are compared to empirical findings from literature. Results of the model for various cases will be presented in a subsequent publication.