3D simulation of AC loss in a twisted multi-filamentary superconducting wire

摘要: Abstract In the AC loss simulation, it is a huge challenge to model twisted wire at filament level, due complex structure as well long-time computation consumption. this paper, we use 3D finite-element method based on H-formulation study in superconducting wire. The treated homogenous material with anisotropic conductivity region. We quantitatively simulate induced by transport current and magnetic field profile, effect of twist pitch loss. case current, larger length leads higher loss, contrary applied field. influences direction non-uniform distribution subjected strand bending are also investigated. It observed that, transverse has more significant influence than longitudinal can result compared corresponding uniform distribution.