Abstract
In an attempt to elucidate the fundamental transport phenomena in twin-roll casting, the transient fluid flow, heat transfer and solidification behaviors during the early stage of the process were simulated using the ProCAST software. The set of governing differential equations were solved using two methods. The phase change during solidification was handled with the employment of an enthalpy method. The calculation results revealed how the metal pool progressively develops between the rolls and how the solidified layer grows in thickness with time on the rotating rolls. In addition, it was also possible to obtain the metal pool level, the solidification front including the position end. These informations are then used to determine the optimal withdrawal time of the strip casting process.