The models include two phase flow effects due to argon gas injection, dissipation of superheat, and the movement of inclusion particles. The results are needed to understand and prevent flow and inclusion-related defects. This figure shows the typical velocity pattern calculated in one quarter of a continuous casting mold using the 3-D finite difference model. The corresponding temperature profiles are shown in the adjacent frame.
Flow turns upward and runs along the top surface back towards the nozzle.
Most of the superheat is dissipated in the mold, as indicated by the deep blue temperature, signifying the liquidus temperature. Click on picture for a larger version, which also shows the mesh and superheat flux contours delivered to the inside of the solidifying steel shell. 21B, No. 2, 387-400, April 1990.