Steel makers, at present, are aiming for higher casting speeds of liquid steel, giving equal importance to the product quality. In a continuous slab caster, a higher casting speed leads to several problems, such as higher meniscus fluctuations and frequent vortex formation, resulting in entrainment of slag into the liquid steel. So the control of the meniscus fluctuation plays an important role in attaining a better product quality and this meniscusfluctuations are very much depend upon the flow pattern of molten metal inside the mold.The present investigation was aimed to study the dynamic performance of submerged entry nozzlebased on the water modelling studies for higher casting speed with respect to minimum surface fluctuations.The experiments were carried out to study the effect of different operating parameters on meniscus fluctuations. The performance of 00 and 150 downward rectangular ports were studied by varying the different operating parameters. The wave amplitude of the fluctuations was found to be increasing with the increase in casting speed for both 00and 150downward ports.
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