Research on simulation of liquid steel flow in a ASF billet 8-strand continuous casting tundish

Three-dimensional flow field of molten steel in a 8-strand continuous casting tundish is investigated by numerical simulation method and then the results are verified by water model experiment and industrial production.The simulation result shows that the baffle and inhibitor in ASF tundish can improve the flow coditions and temperature distribution of liquid steel remarkablely.The flow conditions will be much better if double dams are installed in the tundish.Since there are four circulation zones for flowing of the liquid steel not only mixability of the liquid steell is improved,but also the temperature distribution of the liquid steel in the tundish is more homogeneous and low temperature zone is much less as well.Water model experiments show that the similarity of the flow characteristics of each strand can be prominently improved by installation of inhibitor and baffle in an empty tundish and the flowability of the liquid steel can become much better if double dams are further added in the tundish upon the above mentioned base.The results of numerical simulation are completely in agreement with that of the water modelling.Beside the expected purposes have also been achieved in the industrial production.