Simulation of Critical Currents in Bulk Superconductors by Modified FEA and Hybrid Methods

A modified finite-element analysis (FEA) and hybrid numerical-analytical method for simulation of critical currents and magnetic fields in high-temperature bulk superconductors are discussed. It is shown that the hybrid method is more robust and efficient in terms of speed and accuracy as compared with the known integral method. The modified FEA method is more stable than a conventional transient solution especially at large n-value in J-E relation.