Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

The influence of a swirling flow inside the submerged entry nozzle on the structure and the stability of a liquid metal flow in a physical model of a slab-casting mold is investigated. For visualization of the flow the Contactless Inductive Flow Tomography (CIFT) is applied. As expected and desired, the swirling flow leads to a stronger upward fluid motion along the walls. At the same time, however, the oscillatory character of the flow becomes stronger. These flow features obtained with CIFT are shown to be in reasonable agreement with independent measurements using Ultrasonic Doppler Velocimetry (UDV). Preliminary results of numerical simulations show a similar behaviour, too.