Type, size and distribution of non-metallic inclusions affect the material properties of the steel-grade. In a straight-mould vertical bending caster, the liquid domain extends far into the strand. The inclusions drift upwards as long as the steel is not solidified and in the bending region, they accumulate in the upper part of the strand cross section area: the well known quarter depth inclusion band is formed. In this work, the inclusion distribution over the strand cross section area is calculated with a computational flow simulation and compared with measurements with an ultrasonic inclusion detector. The measurements are performed for a two port nozzle turned by 20 deg about the vertical axis. In the simulations, a turned and an unturned entry nozzle are considered.
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