MAGS: A computer code system to analyze the 3D quench propagation in forced flow cooled superconducting magnet systems

For the detailed analysis of the propagation of normal conducting zones in forced flow cooled superconducting coils the code system MAGS has been developed at Kernforschungszentrum Karlsruhe. The code system is modular, i.e., depending on the desired degree of details of the results the user can choose between different modules and options to adjust the analysis effort to the requirements. The paper gives a rough description of the modules. An example for application is the analysis of a quench in an ITER coil using a detailed and a coarse model. It turned out that the coarse model gives results with an error of 50% in peak temperature compared to the detailed results. Keeping in mind that the computing effort is reduced with the coarse model by two orders of magnitude the coarse model is an interesting option of MAGS.