Utilization of Experimental Data as Boundary Conditions for the Solidification Model Tempsimu-3D

Abstract

Solidification models are an important tool for the prediction of temperatures and shell growth during the process of continuous casting of steel. To gain reliable simulation results, it is crucial to use highly sophisticated material data and boundary conditions depending on different process parameters. The focus of this work lies on the utilization of experimental data to describe the secondary cooling zone (SCZ) of a slab caster in the solidification model Tempsimu-3D. In this part of the caster, water and air-mist sprays are used to cool down the strand. To calculate the heat transfer coefficient caused by spray cooling (HTCspray), the model uses a correlation between the water impact density (WID) and the surface temperature of the slab. Together with the heat removal due to roll contact and radiation, this HTCspray is applied as a boundary condition for the SCZ. To adjust the parameters of the correlation formula, results from WID and HTC measurements are used. For validation, the simulation results are compared with a measurement of the slab surface temperature.