Numerical Simulation of Fluid Flow and Thermal Characteristics in the Funnel-type Mold with Different Width

The width of the thin slab mold can be changed to produce different steel grades to satisfy the needs of customers.Therefore,it is necessary to study the fluid flow,heat transfer and solidification behavior in the mold.In this paper,the coupled model was adopted to analyze the fluid flow,heat transfer and solidification behavior of different width,1 100,1 300 mm,and 1 600 mm in the funnel-type mold.The casting speed was at 4.0 m/min.The results showed that the free surface condition compared to the conventional slab show some differences as the width of the mold increases.The width change mainly reflected the impact of heat transfer and solidification of the local area in the direction along the outlet jet,the weak areas of the mold exit of the solidified shell with a width increase in expansion.