An Original Numerical Model Of Heat AndMass Transfer In A Concasting Machine

Abstract

The solidification and cooling of a continuously cast billet or slab (generally a concasting) and simultaneous heating of the crystallizer is a very complicated problem of transient heat and mass transfer. The solving of such a problem is impossible without numerical models of the temperature field, not only of the concasting itself, while it is being processed through the concasting machine (CCM), but of the crystallizer as well. This process is described by the FourierKirchhoff equation. An original three-dimensional (3D) numerical model of the temperature field of a CCM has been developed. It has graphical input and output automatic generation of the net and plotting of temperature fields in the form of color isotherms and iso-zones, and temperature-time curves for any point of the system being investigated. This numerical model is capable of simulating the temperature field of a CCM as a whole, or any of its parts. Simultaneously, together with the numerical computation, experimental research and measuring have to take place not only to be confronted with the numerical model, but also to make it more accurate throughout the course of the process. This analysis was conducted using a program devised within the framework no. 706/P&/02P6 < 20. 1 An original numerical model Solidification and cooling of a casting and simultaneous heating of the mold is, from the point of view of heat transfer, a case of transient spatial, or 3D, heat and mass transfer in a system comprising the casting, mold and surroundings. This is Advances in Fluid Mechanics III, C.A. Brebbia & M. Rahman (Editors) © 2000 WIT Press, www.witpress.com, ISBN 1-85312-813-9