Advantages of Utilizing PLIF to Analyze Mixing Phenomena in a Physical Model of a Two-strand Continuous Casting Tundish

Abstract This work presents the improved application of the chemical planar laser-induced fluorescence (PLIF) to obtain residence time distribution (RTD) curves in a physical model of a two-strand tundish without flow modifiers. It proposes a new experimental methodology to overcome the issues of using this complex technique in continuous reactors. A calibration procedure for PLIF previously developed for gas-stirred ladles is adapted to determine concentration fields in a tundish. The concentration maps obtained by PLIF represent valuable quantitative information about the evolution of solute mixing after a tracer pulse injection. This information may facilitate the analysis of the mass transfer mechanisms involved in mixing phenomena inside the tundish.