Based on the structure and operation parameters of an 30 t tundish for 6-strand 200 mm×200 mm billet concasting

the effect of gas curtain technology on liquid steel flow characteristics and removal rate of inclusion in tundish with 6-strand has been studied by mathematical simulation using Eulerian multiphase model

porous media model

Eulerian Lagrangian Model and Monte-Carlo method with introduce bubble absorption model. Results indicate that with adopting optimum gas curtain technology

it is available to improve liquid steel flow condition

balance residence time at each exit

prolong average residence time of liquid steel

decrease dead zone volume and increase remove rate of inclusion

and meet requirement of steelmaking for ultra-purity steel in tundish for multi-strand concasting.