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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

NUMERICAL PREDICTION OF PHASE CHANGE USING THE ENTHALPY METHOD

Get access (open in a dialog) DOI: 10.1615/IHTC11.960
pages 127-131

Abstract

A Numerical analysis has been performed on the two-dimensional rectangular gallium melting problem using the enthalpy method. The major advantage of this method is that the physical domain is discretized with fixed grids without transforming variables and the interface conditions of phase change are accounted for the definition of suitable source terms in the governing equations. In this study, a modified enthalpy-porosity method using the viscosity correction are used to predict the phase change. Computational procedures for predicting velocity and temperature are based on the finite volume method and the non-staggered grid system. The influence of laminar natural convection flow on the melting process is considered. A comparison with the experimental results shows that the modified scheme is better than the previous one.