2-Dimensional Numerical Studies on Thin HTS Film under Time Varying Magnetic Field Using Finite Element Method변화하는 자기장 하에 있는 고온초전도체에 대한 유한요 소법을 이용한 2차원 수치해석 연구
In this paper, we used E-J constitutive law and H-formulation to calculate magnetic field profile, current density, and magnetization of high temperature superconductor (HTS) placed in time varying applied magnetic field. Finite element method (FEM)-based software, Comsol Multiphysics 3.5a, was employed to simulate 2-dimensional model of a superconducting thin strip. The numerical results based on Kim’s critical state model were compared with the case of strip in a perpendicular field in the Brandt’s paper as well as experimental data observed by Scanning Hall Probe and SQUID.