As the casting speed of billet grows up daily,the tundish metallurgical functions are paid more attentions.For high speed continuous casting,the inclusions in molten steel should be strictly controlled,also the temperature and composition uniformity of molten steel in tundish are very important too.Qualified flow field in tundish can not only reduce inclusions in molten steel by increasing the floating time,but also be good to uniform the temperature and composition of molten steel.In this paper,based on the numerical simulation,the distribution of flow and temperature field of the tundish for eight-strand billet caster is calculated.The calculation results show that the design of retaining wall and dam is beneficial to the uniform of the flow field.The dead zone of flow field is reduced by 13.2％,and the average residence time is increased by 52s.The turbulence inhibitor can reduce the flow velocity near the liquid level of tundish from about 0.2m/s to about 0.12m/s,which effectively inhibits turbulence and reduces slag entrapment.
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