Calcul de l'impédance d'un inducteur circulaire plat par conjonction des méthodes intégrales de frontière et éléments finis

The knowledge of the impedance of the whole inductor-load has a great importance for the design of the generators used in the induction heating technology. In this paper, we study the case of a plannar circular inductor fed by a voltage u of a variable frequency up to 30 MHz. To calculate the impedance, one should resolve the diffusion equation in an axisymetric configuration. Here we propose a mixed method, using the finit elements method in the volume of the inductor and load and a boundary elements method at their surfaces