A mathematical model for 14. 5 t tundish casting 160 mm x 160 mm billet at Shougang is established and the numerical calculation of flow and temperature of liquid in shape tundish for 4-strand is calculated by using fluid dynamic software Fluent to get the flow speed field
temperature field and residence time distribution curves of liquid in tundish. Calculation results show that the maximum temperature difference between each strand is 8 K
therefore the lower overheating extent liquid shall be avoided; besides the percentage of dead volume of No l strand is 20% little larger than that other strands ( 10% 〜12% )
the flow parameters of liquid in tundish meet the requirement for casting operation.