Physical modelling of fluid flow and inclusion removal in steel continuous casting tundish using various flow modifiers, STIS 2017 conference, Kanpur, India.
In order to improve liquid steel cleanliness and enhance non-metallic inclusion removal, several flow control devices were designed for two types of tundishes, one of which is a four-strand billet caster tundish and the other one is a two strand tundish. The flow modifiers considered in my study consisted of a standard impact pad (for 4-strand tundish), a high impact pad (for 4-strand tundish), and a rotational flow modifier (RFM,for both tundishes).
In my study, the fluid flow phenomena in a both tundishes were investigated by physical modelling, and the effects of inclusion particle size and throughput on inclusion floatation rate were also examined. The velocity field inside the flow modifiers was measured by a Time Resolved Particle Imagine Velocimeter (TR-PIV). By evaluating the inclusion floatation rates in combination with the flow pattern measurements, an optimized tundish flow control device has been proposed for the steel industry.