The A-V formulation based iterative algorithm method (IAM), developed at Paul Scherrer Institute, shows excellent performance in modeling the critical state magnetization-current in the ReBCO tape stacks after field-cooling magnetization. This article upgrades the function of the IAM, making it realistic to take into account the widely used E-J power law, as well as to model the magnetization-current in bulk high-temperature superconductors under a zero-field-cooling cycle, having both the magnetization and demagnetization stages. The simulation results obtained from the ANSYS-IAM are validated with the well-known H-formulation method for both the critical state model and the flux creep model. The computation times from using the two different numerical methods are compared and discussed. The influence factors, including the iteration steps, the initial superconductor resistivity, the ramping time, and the reservation coefficient, are studied in detail.

中文翻译：

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使用 ANSYS 迭代算法方法模拟高温体超导体的磁化电流


Paul Scherrer 研究所开发的基于 AV 公式的迭代算法方法 (IAM) 在模拟场冷磁化后 ReBCO 磁带堆栈中的临界状态磁化​​电流方面表现出出色的性能。本文升级了 IAM 的功能，使得考虑广泛使用的 EJ 幂律以及在零场冷却循环下模拟大块高温超导体的磁化电流变得现实，同时具有磁化和退磁阶段。 ANSYS-IAM 获得的仿真结果通过著名的 H 公式方法对临界状态模型和磁通蠕变模型进行了验证。比较和讨论了使用两种不同数值方法的计算时间。详细研究了迭代步数、初始超导电阻率、升温时间和保留系数等影响因素。