ELECTROMAGNETIC RESPONSE OF COMPOSITE SUPERCONDUCTING WIRES

In this article a review is given of analytical and numerical calculations on the electromagnetic properties of composite superconducting wires. The review is based on the research performed at the University of Twente during the last ten years. Due attention is given to related results in the literature. The basic elements of the description are the Maxwell equations supplemented with a set of constitutive equations, relating the electric field E and the current density j in the composite. The problem is non-linear due to the non-linear E-j relation describing the superconducting filaments. The basic analytical and numerical tools for analyzing engineering problems are presented. Furthermore a synopsis is given of characteristic types of numerical results. Some comparisons between analytical and numerical results are also given.