Experimental investigation of electromagnetic stirring affecting the mould flow in a liquid metal model

In this work an experimental study using a 1:3 scale acrylic glass model of the round bloom caster from voestalpine Stahl Donawitz GmbH is presented. The model experiment uses the eutectic alloy GaInSn at room temperature. An electromagnetic stirrer was installed at the mould producing a rotating magnetic field (RMF). The flow field inside the mould was measured using the ultrasound Doppler velocimetry (UDV). Up to 10 ultrasonic transducers were employed simultaneously in order to obtain a two-dimensional reconstruction of the flow structure. The experiment provides an extensive and valuable data base for validation of numerical methods. The application of electromagnetic fields for flow and solidification control in continuous casting will be a crucial point of our future work