원문정보
초록
영어
This paper reports comparison between analytic and numerical simulation approaches for calculation of screening current and screening current induced field in a high temperature superconductor magnet. Bean slab model is adopted to calculate screening current and SCF analytically, while the finite element method numerically. A case study of screening current and SCF calculation are conducted with a magnet, a 7 T 68 mm cold-bore multi-width no-insulation GdBCO magnet built and tested by Massachusetts Institute of Technology Francis Bitter Magnet Laboratory. In this study, we assume the magnet is dunked in liquid nitrogen at 77 K. Furthermore, the simulation results are compared in terms of computation time and accuracy. Finally, discussion on the different methods together with the comparison between the calculations and experiment is provided.
목차
1. INTRODUCTION
2. SIMULATION APPROACHES
2.1. Bean Slab Model
2.2. Finite Element Method
3. CASE STUDY: A 7 T 68 MM NO-INSULATION GDBCO MAGNET OPERATING AT 77 K
3.1. Key Parameters
3.2. Simulation Results
3.3. Discussion
4. CONCLUSION
ACKNOWLEDGMENT
REFERENCES