Based on operation process parameters of tundish for two strand concasting 1500 mmx 250 mm slab

using Eulerian multiphase model

porous media model and Larangian random-trajectory model

the characteristics of molten steel flow and inclusion moving trace in tundish with turbulence inhibitor and gas blowing curtain technology have been simulated mathematically

and the total removal ratio of inclusion in steel was calculated statistically by Monte-Carlo method. The simulation results showed that the technology of gas curtain was available to effectively improve the feature of molten steel flow and prolong residence time of molten steel

reduce the volume of dead zone; and as gas blowing rate was 0.90 m²/h the removal ratio of inclusion increased by 15.6% compared that with non-gas blowing