Making Curved Interphases Straight in Phase-Change Problems

Mario Storti, Luis A. Crivelli, Sergio R. Idelsohn


This paper presents a method for straighten curved interphases arising in phase-change problems. The method works on isoparametric finite elements, performing a second transformation which the interphase looks as a straight line. This allows using the current Gaussian integration technique for squares to evaluate the integrals over each phase. Several numerical examples are presented to show the performance of the method.

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