Mathematical Simulation of Steel Flow and Inclusion Movement in the Tundish with Gas Blowing at the Bottom

According to the structure and the operating parameters of tundish at a certain plant, Eulerian multiphase model and porous media model are applied; and the characteristics of flow and movement of inclusion in the tundish with turbulence inhibitor and gas blowing at the bottom are mathematically simulated. It is found that gas blowing at the bottom, like a dam, has effectively changed the steel flow, eliminated the short flow, and increased the inclusion removal rate, by which steel cleanliness can be improved.