Magneto-thermal analysis of induction heating processes

The study of induction heating systems from the electromagnetic point of view is still a challenging task for several reasons: the problem underanalysis is strictly multiphysics because it involves the coupled electromagnetic and thermal phenomena; both coupled physics have nonlinear behavior; nonlinearities are of different kinds, both depending on the single phenomenon and on the coupling terms. The aim of the paper is to show that the cell method, based on the use of Tonti diagrams, can handle efficiently this kind of problems. The proposed magneto-thermal numerical procedure is firstly described in its theoretical aspects and then it is applied to a numerical benchmark. Comparisons are carried out with a commercial software on the single physic problem and then the complete coupled analysis is performed