ESTIMATING THE LAST POINT TO SOLIDIFY IN A CASTING

Abstract

An approximate method for predicting the last point to solidify in a casting is presented. On defining a time-averaged temperature field, an approximate method for predicting the last point to solidify is defined by the solutions of two steady-state Poisson equations. The method is demonstrated by solving a number of one- and two-dimensional problems. For moderate values of Stefan number ( St < 2) predictions for the last point to solidify are in close agreement with predictions obtained from analytical and complete transient numerical solutions.

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Notes on contributors

V.R Voller

Anthony Falls Laborator, Mississippi River at Third Avenue SE, University of Minnesota, Minneapolis, MN 55455-2196, USA.