Mathematical simulation of inclusion movement with gas blowing at tundish bottom

Eulerian-Lagrangian model and Monte-Carlo method were applied,in the condition of different positions of gas blowing and different gas flow.Meantime,the trajectories and removal rate of inclusion particles,in the tundish with turbulence inhibitor and gas blowing at the bottom were mathematically simulated by CFD software.The results indecated that the gas blowing at the bottom of tundish can improve removal rate of inclusion particles especially for the micro size inclusion particles which diameters are less than 50μm.The gar flow rate and the position of gas blowing have great effect on inclusion removal rate.When the distance of gas blowing from inlet is 1600mm and the gas flow rate is 0.90m3/h,the removal rate of inclusion particles is highest.