| A 2-D coupled analysis of heat transfer and fluid flow was conducted in continuously cast bloom. Latent heat of fusion was considered by modifying the heat capacity/temperature relation, which is so called the effective heat capacity method. To consider the curved type geometry, boundary-fitted coordinate(BFC) system was employed. Water cooling in the mold was simulated by considering the known heat flux and the secondary cooling by considering air cooling and air-mist spray. In this study, the fluid flow and the temperature profile in the continuous casting system of bloom were simulated with the variation of casting speed, tundish superheat. Thus, the effects of casting variables on the distribution of surface temperature, shell thickness, metallurgical length were predicted. |
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