NUMERICAL MODELLING OF TWIN-ROLL CASTING BY THE COUPLED FLUID FLOW AND HEAT TRANSFER MODEL

The twin-roll process is modelled by a coupled ßuid ßow and phase change model by means of a versatile Þnite element method. Here, a simple numerical scheme is proposed to solve the problem of determining the interface shape under the thermal equilibrium condition. The procedure is based on a Þnite element method using a transform technique. The simple numerical method provides an e¦cient and accurate way to Þnd the interface position and shape with arbitrary boundary geometry. This method can easily be implemented on the existing Þnite element program, and provides a simple and e¦cient tool to simulate the solidiÞcation as well as the ßuid ßow problem of the twin-roll casting process.