A project was funded by SERC involving RAL, Bath University and Imperial College to develop a time-harmonic eddy current program in three dimensions. This was completed in 1984. The new package called CARMEN was capable of analysing 3D linear transient eddy current problems. As part of the project, a Neutral File was defined and used to interface the eddy current package to the commercial pre- and post-processors FEMGEN and FEMVIEW, as well as the Post-viewer, HEXTET, written by Imperial College as part of the project. One of its more important applications was in the area of non-destructive testing. Initially comparison were made with a benchmark experiment at the University of Bath and with results from programs which use different algorithms. For simple cases, the program gave reliable results. Comparisons were also made with results from the FELIX experimental rig at the Argonne National Laboratory. CARMEN was developed further to allow modelling of multiply-connected surfaces and also for transient and non-linear problems to be solved.
The eddy current software became an integral part of Vector Fields new software suite which was also named CARMEN.
