WIT Press


An Enthalpy-based Algorithm For The Analysis Of Phase Change In Nonhomogeneous Media

Price

Free (open access)

Paper DOI

10.2495/MB950151

Volume

13

Pages

8

Published

1995

Size

724 kb

Author(s)

O. Saro, C. Nonino & G. Comini

Abstract

An enthalpy based finite element procedure for the solution of phase change problems in nonhomogeneous media is described with reference to two- dimensional plane and axisymmetric geometries. The Euler explicit time integration scheme, the lumping of the capacity matrix and the use of the Kirchoff transformation in the conduction term of the governing equation represent the main features of the proposed procedure. 1 Introduction Over the past twenty years, much interest has been directed towards the nu- merical modeling of phase change, with special emphasis on the solidification processes involved in metal casting. According to the apparent heat capacity method, the latent heat effect is simulated by means of an equivalent heat capacity defined over a small tem

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