In the paper, the effects of special pour box design on tundish flow characteristics are investigated with the help of computational fluid dynamics. The numerical model is based on an Eulerian–Lagrangian approach for melt flow and non-metallic inclusion behaviour, respectively. For a prototypical twin strand tundish configuration, basic features of the mean tundish flow, residence time distributions and parameters of the melt history are discussed. It is shown that the pour box design is not only of importance for the tundish flow field but also of significance for processes of secondary metallurgy.
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