Adaptive meshing in 3D multi-static problem with variable sources

This paper deals with adaptive meshing in the case of time dependent proble ms within a 3D non linear multi-static approximation. In order to evaluate the numerical errors, the notion of ligurian is introduced. This estimator requires a couple of admissible fields. A method for the determination of t his last couple is exposed. At least, on a three-phased transformer, we hig hlight the difficulties of the calculation of a well adapted error distribu tion for adaptive meshing. Three methods are exposed and compared.