Mean Age Theory in Continuous Casting Tundish

Abstract Mean age theory is introduced to characterize the mixing performance of tundish based on spatial distribution tracer’s mean age. Conventional residence time was widely used in analysis; however, it contains no information local states. Based distribution, melt change efficiency defined as a index evaluate how quickly old can be replaced by young from ladle. Case studies, divided into three groups, were carried out test applicability new single-strand with flow control devices weir, dam and turbulence inhibitor. The developed model well validated comparison measurement water computational fluid dynamics (CFD) results using (RTD) model. reduce computing two orders magnitude less conventional transient RTD model, which improves feasibility CFD modelling parameter studies broader extent.