AN EFFICIENT ALGORITHM FOR FINITE-DIFFERENCE ANALYSES OF HEAT TRANSFER WITH MELTING AND SOLIDIFICATION

J. S. Hsiao

Numerical Heat Transfer · 1985 · 80 citations · 15 references

Concepts

Abstract

A simple algorithm incorporating the equivalent heat capacity model is described for the finite-difference heat transfer analysis involving melting and solidification. The latent heat of fusion is accounted for by using a linear interpolation of the nodal temperatures. Numerical solutions of both one- and two-dimensional phase change problems are presented. This scheme is insensitive to the magnitude of the temperature interval 2 AT assumed for phase transition to take place. Therefore, a very small (or zero) or large temperature interval 2AT can be used to properly simulate the fusion of a pure material or an alloy, respectively. The present algorithm can also be extended to the three-dimensional phase change problem

References

15