Magnetization simulation of Rebco tape stack with a large number of layers using the Ansys &lt;em&gt;A&lt;/em&gt;-&lt;em&gt;V&lt;/em&gt;-&lt;em&gt;A&lt;/em&gt; formulation

Zhang, Kai; Hellmann, Sebastian; Calvi, Marco; Schmidt, Thomas

doi:10.1109/TASC.2020.2965506

Magnetization simulation of Rebco tape stack with a large number of layers using the Ansys A-V-A formulation

Zhang K, Hellmann S, Calvi M & Schmidt T

Citation

Zhang, K., Hellmann, S., Calvi, M., & Schmidt, T. (2020). Magnetization simulation of Rebco tape stack with a large number of layers using the Ansys A-V-A formulation. IEEE Transactions on Applied Superconductivity, 30(4), 4700805 (5 pp.). https://doi.org/10.1109/TASC.2020.2965506

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:29609

In this paper we have modeled the magnetization of a disk-shaped ReBCO tape stack by using the ANSYS A-V-A formulation based iterative algorithm method developed at Paul Scherrer Institute (PSI). The tape stack consists of 400 layers of ReBCO coated conductors from SuperOx which have a tape width of 12 mm, a thickness of 46 μm and a field angle dependent critical current density J_c(B). The model of the tape stack is created with real superconducting layers and substrates, without assuming a homogenized J_c in the tape or assuming the superconducting layer as 1-D line in the tape (T-A formulation). The computation time is reduced by using the A-V formulation in superconducting layers and the A-formulation in non-superconducting areas. Simulation studies show that the tape stack is capable of trapping a central magnetic field of 10 T after field cooling (FC) magnetization from 10 T to zero. Further studies are carried out to investigate the possibility of trapping a central magnetic field of 20 T in a tape stack by using wider or thinner ReBCO coated conductors.