Comparison of Numerical Error Estimators for Eddy-Current Problems Solved by FEM

In the domain of field computation with the finite-element method, choosing the mesh refinement is an important step to obtain an accurate solution. In order to evaluate the quality of the mesh, a posteriori error estimators are frequently used. In this paper, we propose to analyze and to compare residual and equilibrated error estimators for eddy-current problems in the case of A-φ and T-Ω formulations. The different properties of the estimators will be discussed.